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Forum: Pontiac - Street Yesterday, 09:28 PM
Replies: 16
Views: 527
Posted By ta man
I saw that video last year. It made me think I...

I saw that video last year. It made me think I ran a -.005 set with this current shortblock. it was tight hard to put on. Late last year I swapped my looser standard set on..see what happens I'm...
Forum: Pontiac - Street 04-23-2024, 06:44 AM
Replies: 50
Views: 2,716
Posted By Cliff R
"The 850 CFM Edelbrock carb flows more that an...

"The 850 CFM Edelbrock carb flows more that an SD-455 carb on my flow bench."

The Edelbrock 1910 is a copy of a 1980 Chevy truck carburetor part number 17080213. They set the full open angle of...
Forum: Pontiac - Street 04-22-2024, 06:58 PM
Replies: 50
Views: 2,716
Posted By PAUL K
Maybe this will help explain things ...

Maybe this will help explain things


https://forums.maxperformanceinc.com/forums/showthread.php?t=826882&referrerid=134156


Pontiac found the 850 Holley to make more power than the Q-jet on...
Forum: Pontiac - Street 04-22-2024, 03:44 PM
Replies: 50
Views: 2,716
Posted By Cliff R
It works just like I said it did. All the Q-jets...

It works just like I said it did. All the Q-jets with the larger primaries are NOT "800" cfm, and never have been. The factory used quite a few different stops on the secondary shaft to control CFM...
Forum: Exhaust TECH 03-23-2024, 02:40 PM
Replies: 8
Views: 1,360
Posted By 65 Lamnas
You're 100% correct...I actually discovered that...

You're 100% correct...I actually discovered that after my post and ordered the 17792s. They arrived today.
Forum: Heating & Cooling TECH 12-03-2023, 02:15 AM
Replies: 96
Views: 21,053
Posted By Tuske427
Adding onto an old thread here in the hopes that...

Adding onto an old thread here in the hopes that what I did may be of help for others who come across this.

When I got my car earlier this year ('69 GTO w/ AC) there was almost no air coming out...
Forum: Pontiac - Street 09-06-2023, 11:25 AM
Replies: 80
Views: 4,266
Posted By Formulajones
I tend to agree with Shurkey and I eluded to that...

I tend to agree with Shurkey and I eluded to that scenario in previous posts. When you're running 25 degrees above the rated thermostat temp, that's an indication the cooling system is running away,...
Forum: Pontiac - Street 08-07-2023, 04:00 PM
Replies: 277
Views: 10,173
Posted By Gach
Lets say that cam was ground on a 108, you...

Lets say that cam was ground on a 108, you installed it dot to dot. per instructions. But never degree it, now for some reason (gear set ) being off, you check it ( degree it in ). And it comes in at...
Forum: Heating & Cooling TECH 08-04-2023, 10:45 AM
Replies: 3
Views: 1,382
Posted By Doug Hopkins
Overheating solved 67 Firebird 400

My 67 Firebird 400/TH400 factory 3 core radiator would not cool! It would run 190-220 deg. and sometimes hotter regardless of what I did. I installed a Cold-Case #CHC11A aluminum radiator, and all...
Forum: Pontiac - Street 06-03-2022, 07:20 PM
Replies: 64
Views: 5,159
Posted By Half-Inch Stud
Fast ramps stink, suck, and wear badly. Fast...

Fast ramps stink, suck, and wear badly. Fast ramps are any thing less than 50* between ADV-.050" check Duration.

Slow ramps allow higher RPM, better filling, and increased reliability. Vacuum...
Forum: Pontiac - Street 11-17-2021, 01:10 PM
Replies: 99
Views: 13,246
Posted By dld
pic of my 70 t/A . note the shifter location

pic of my 70 t/A . note the shifter location
Forum: Interior TECH 09-10-2021, 02:23 PM
Replies: 30
Views: 5,595
Posted By vertigto
Thought about doing something similar on mine,...

Thought about doing something similar on mine, but when I got the replacement seat springs they were heavier gauge and a bit stiffer than stock already.
Forum: Interior TECH 09-10-2021, 01:59 PM
Replies: 30
Views: 5,595
Posted By ZeGermanHam
Ah, I see. For some reason I assumed that he was...

Ah, I see. For some reason I assumed that he was trying to accomplish higher bolsters like the OP is, but using a different approach.
Forum: Interior TECH 09-10-2021, 01:24 PM
Replies: 30
Views: 5,595
Posted By HWYSTR455
He's not changing the bolster heights. All he's...

He's not changing the bolster heights. All he's doing is adding springs to the side to make them stiffer. They are the same height.


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Forum: Interior TECH 09-10-2021, 01:10 PM
Replies: 30
Views: 5,595
Posted By ZeGermanHam
Right, but the seat cover will still need to be...

Right, but the seat cover will still need to be hog-ringed to the same location despite the increase in bolster height. If you increase the bolster height, there is the risk that the seat covers will...
Forum: Interior TECH 09-10-2021, 06:16 AM
Replies: 30
Views: 5,595
Posted By HWYSTR455
Yeah, I don't think he's making the sides and...

Yeah, I don't think he's making the sides and different in shape, he's just adding a few spring on the sides.


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Forum: Interior TECH 09-09-2021, 07:53 PM
Replies: 30
Views: 5,595
Posted By ZeGermanHam
Though I'm going the stock route for my car, I'm...

Though I'm going the stock route for my car, I'm curious to see how 70GS455's plan works out, too. In particular, whether the stock seat covers will have enough material to allow him to raise the...
Forum: Interior TECH 09-09-2021, 12:55 PM
Replies: 30
Views: 5,595
Posted By HWYSTR455
Dang, that's a great idea. Please post once you...

Dang, that's a great idea. Please post once you have those together, I'm very interested in the results 70GS455.


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Forum: Heating & Cooling TECH 08-08-2021, 02:39 PM
Replies: 22
Views: 12,939
Posted By Longs
Yesterday I took the car on a pretty long drive,...

Yesterday I took the car on a pretty long drive, mostly 40 - 50 MPH, up and down hills, not on the highway, to a car cruise. The outside temp was 89 degrees. The last part of that drive was idling...
Forum: Pontiac - Street 07-07-2021, 11:03 PM
Replies: 27
Views: 5,535
Posted By whittp
It does not. You can kind of make it out in the...

It does not. You can kind of make it out in the picture I attached. The SST unit looks like it has a farther left and a little lower offset. I emailed those guys to get the exact numbers.
Forum: Pontiac - Street 05-17-2021, 03:52 PM
Replies: 13
Views: 3,130
Posted By Skip Fix
My Buick buddies always liked the B4Bs. Even with...

My Buick buddies always liked the B4Bs. Even with ported iron head they would get in the 10.90s easy.
Forum: Pontiac - Street 02-23-2021, 05:16 PM
Replies: 47
Views: 7,158
Posted By GTO3DEUCES
🔰 Hiya 70GS455...

I think it’s Silver Sport not Silver State...I really appreciate your pointing out the alternative offset shifter...👍

https://shiftsst.com/...
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