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#61
03-25-2009, 09:24 AM
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Chuck, that is the Qjet version in the pic.
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 ___________________________________ "Objects in mirror are closer than they appear" 
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#62
03-25-2009, 09:52 AM
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Cliff,
Any advantage or disadvantage to using the multi-pattern version of the P4B over the Q-Jet only??? |
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#63
03-25-2009, 10:33 AM
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Cliff, Nice Plenum. I hope to unshroud my P4B Plenum to that. Mine has the Sec-Notch by Edelbrok.
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#64
03-25-2009, 05:38 PM
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Quote:
 From my understanding there's the P4B and the P4B-QJ version.. I could be wrong..Charles
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick. Best so far 10.12@133 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. Last edited by chuckies76ta; 07-21-2011 at 06:23 AM. |
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#65
03-25-2009, 11:18 PM
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Chuckie is correct...
There is a Plain P4Bdual bolt pattern, square flange for Holley and AFB's and there is the P4B-QJ that is a Q-Jet only pattern. Here is what a regular P4B looks like with a Q-Jet gasket on it...Robert |
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#66
03-26-2009, 06:49 AM
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So U can't use a q-jet a square bore one? not enough material?
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Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,7.33@94.55-11.502@117.74  2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32 M/T 275/60 ET SS Drag Radial 2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's |
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#67
03-26-2009, 08:00 AM
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Correct, they are not wide enough anywhere, front or rear, and adapter/spacer is required.
From what I can see, the square flange version is fairly restrictive above the plenum areas, as I have both of them in the shop. The Q-jet version is over an inch wider and give the air a better shot at the runners. We'll know more once the tracks open up here and we can do some testing?.....Cliff
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
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#68
03-26-2009, 08:31 AM
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Mine is identical to Post #64 2nd picture, with water log hacked off.
Notice the complete inability to seal the area forward of the Primaries. I gotta JB-Weld that pothole
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12.24/111.6MPH/1.76 60'/28"/3.54:1/SP-TH400/469 R96A/236-244-112LC/1050&TorkerI//3850Lbs//15MPG/89oct Sold 2003: 12.00/112MPH/1.61 60'/26"x3.31:1/10"/469 #48/245-255-110LSA/Q-Jet-Torker/3650Lbs//18MPG 94oct Sold 1994: 11.00/123MPH/1.50 60'/29.5"x4.10:1/10"/469 #48/245-255-110LSA/Dual600s-Wenzler/3250Lbs//94oct |
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#69
03-26-2009, 08:47 AM
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thanks cliff! well that defeats the purpose then if i have to use a adapter.. i will pass probably on the one i am looking at..
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Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,7.33@94.55-11.502@117.74 2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32 M/T 275/60 ET SS Drag Radial 2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's |
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#70
03-26-2009, 10:23 AM
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I found this info.......
http://members.tripod.com/futom/id125.htm All the pictures of the P4B show that the thermostat housing bolts up at a slight angle. At least on my car that'd make installing the P4B an adventure in fabrication.
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 frittering and wasting the hours in an off hand way.... 1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core.
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#71
03-26-2009, 10:36 AM
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most of us cut those off anyway david and use a good old iron one
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Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,7.33@94.55-11.502@117.74 2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32 M/T 275/60 ET SS Drag Radial 2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's |
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#72
03-26-2009, 11:14 AM
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Quote:
Wow! I forgot I had posted that. I made that page some time in 2000 or 2002 I think. Not sure if I can even get back in to edit it? Sure has taken a life of its own. Surprised they haven't deleted that stuff. 
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#73
03-26-2009, 11:17 AM
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Tom, your intake will be on its way back to you next week!
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#74
03-26-2009, 01:10 PM
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That certainly is not a square bore unit. I can plainly see the casting shaped for a qjet secondaries. So is there three verisions of these P4B's? A square only, a qjet only, and a combo?
If so, the pic. is a combo unit like a Performer and RPM?
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___________________________________ "Objects in mirror are closer than they appear"
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#75
03-26-2009, 01:16 PM
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Quote:
__________________
Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,7.33@94.55-11.502@117.74 2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32 M/T 275/60 ET SS Drag Radial 2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's |
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#76
03-26-2009, 02:20 PM
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Quote:
There are at least 4 if you want to break it out like that- 1- Square bore only- small runner 2- Square bore only- LARGE runner 3- Spreadbore only - LARGE Runner (bolt hole spacing with 4 bolts only not 8. The square bore bolt pattern can be drilled in if you want, the meat is there, they just didn't do it) 4- Spreadbore/Squarebore - LARGE runner You will also see the bosses change around for accessories and the exhaust crossover style change between bolt on coil and that weird bulge on the side of the plenum with no pad at all. You can see my actual Qjet intake in the pics above because of the distinct notches in the primary portion of the carb pad where the previous owner started to mod it. |
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#77
03-26-2009, 02:22 PM
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Quote:
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#78
03-26-2009, 02:25 PM
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Quote:
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#79
03-26-2009, 02:26 PM
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Sorry, I was referring to the pic. in post # 58 by Cliff that compares the P4B he is working on to his iron intake.
__________________
___________________________________ "Objects in mirror are closer than they appear"
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#80
03-26-2009, 04:14 PM
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Quote:
Was one of my 1st fab's back in the early 80's. What a butcher job. Didnt work as well as my 68 ....140 intake. I think not only do to the smaller plenum, but also the wider curves of the runners, and lower overall hieght. Could of been the combo. Maybe i'll dig it out and take a pic's to give you guys a laugh.
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If you cant drive from gas pump to gas pump across the map, its not a street car. http://s207.photobucket.com/albums/b...hop/?start=100 |
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