FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
||||
|
||||
![]()
Hi,
I have a '69 Custom S conv.with a 350/TH350. From the factory it seems like it had a 2BBL Q-Jet since it has the following codes stamped: YU code (265HP) #47 heads Block cast: 9790079 An earlier owner changed the intake and put on a Edelbrock 1405. The intake has the following codes: F027 / 535255 This tells me that the intake is from 1976-1977 and fitted on 350-400-455 (info from pontiacpower.net) So my question is what 4BBL Q-jet to choose for this intake/engine? I was hoping to find a good object to rebuild, but need to know what to look for... Joachim, Norway |
#2
|
|||
|
|||
![]()
Only view on it, find a p.b.o. 1977 carb. great fulcrum design along witha great float and ease to set-up. hope it helps
|
#3
|
||||
|
||||
![]()
Thanks!
I will take a look around to see what I can find ![]() What do you mean with p.b.o? Edit: Oh...Pontiac, Buick or Olds ![]() |
#4
|
||||
|
||||
![]()
Yes, the 76-80 carbs with the front fuel inlet are are a good one to start with...
__________________
North Dakotas fastest REAL GTO 10.10 @ 131 MPH in the 1/4 Hoping to get it back together some year. www.jandjrepairandrestoration |
#5
|
||||
|
||||
![]()
My favorite Q-jets are off of '80 to '85 Chevy/GMC 1-ton trucks without specific emissions (10000lbs. brakes) 350 or 454. Dual pulloff, big primary, easily converted to elec. choke some even have elec throttle stop solenoids that I use for A/C cars.
|
#6
|
||||
|
||||
![]()
Thank you for your advice!
__________________
1969 Pontiac Tempest Custom S convertible |
#7
|
||||
|
||||
![]() Quote:
If I get one if these in to work on that has the rear choke pulloff controlled secondary air valve, I usually convert over to front choke pulloff controlled secondary air valve and discard the rear one entirely.
__________________
North Dakotas fastest REAL GTO 10.10 @ 131 MPH in the 1/4 Hoping to get it back together some year. www.jandjrepairandrestoration |
#8
|
||||
|
||||
![]()
The rear pulloff truck carbs have a straight vacuum tube on them and the restriction is real easy to enlarge thereby decreasing opening time. And yes the side inlet does make it a little bit harder to route fuel lines if you use a mechanicle fuel pump but not so much with elec. pumps. I also like the rear pulloff because it unloads the choke faster if you use it. And all the truck carbs I've seen have idle bypass air on them. The 454 carbs used a throttle cable bracket that bolted to the rear carb bolts, it makes for a cleaner installation I think.
Last edited by bignate; 03-18-2009 at 06:33 PM. |
Reply |
|
|