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Forum: Pontiac - Street Today, 04:41 AM
Replies: 6
Views: 202
Posted By Kenth
This may help some: (no Loctite needed).

This may help some: (no Loctite needed).
Forum: Pontiac - Race 04-21-2024, 02:34 PM
Replies: 101
Views: 9,560
Posted By Tim Corcoran
At the machine shop bearing clearances were...

At the machine shop bearing clearances were verified .026-.027 on the rods and the mains are .029-.031 and that is right about what I wanted. Prior to installing the rear main seal I checked the...
Forum: Pontiac - Street 04-21-2024, 09:38 AM
Replies: 50
Views: 2,856
Posted By PAUL K
FWIW many folks have found more power with...

FWIW many folks have found more power with increased air flow using a Quadrajet. Many times folks have found a power gain going from the "750" CFM unit to a large primary venturi "800" CFM unit. Many...
Forum: Pontiac - Street 04-21-2024, 06:52 AM
Replies: 50
Views: 2,856
Posted By Cliff R
The article in question here suggests 4-6psi but...

The article in question here suggests 4-6psi but doesn't mention what carb is being used or the size of the fuel inlet seat. I suspect that the author was either using a 1968 or older carb for the...
Forum: Pontiac - Street 04-20-2024, 11:37 AM
Replies: 194
Views: 13,676
Posted By PAUL K
All round port engine used the copper colored...

All round port engine used the copper colored head bolts. They are belong in the exhaust port bolt holes. I'm thinking the copper color was to alert a person they need to go in a specific place....
Forum: Pontiac - Street 04-20-2024, 09:16 AM
Replies: 50
Views: 2,856
Posted By Cliff R
Fuel pressure and the Q-jet. Right to start...

Fuel pressure and the Q-jet.

Right to start with anytime you see anyone telling readers a Q-jet can only handle 4-6psi they are simply regurgitating old/outdated information. Same thing with...
Forum: Pontiac - Race 04-19-2024, 08:00 AM
Replies: 3
Views: 728
Posted By Zener424
Photo 0f screens & oil pump gasket

For those of you that are interested, here are some shots of the pan with the original screens installed. They seem to have been tack welded to the pan. I didn't want to fuss with having to replace...
Forum: Pontiac - Street 04-19-2024, 07:57 AM
Replies: 50
Views: 2,856
Posted By Cliff R
The information is both outdated and inaccurate. ...

The information is both outdated and inaccurate.

Q-jets stopped using sintered bronze fuel filters in 1967.

4-6 psi fuel pressure???. Rochester moved the hinge pin forward in 1969. The...
Forum: Pontiac - Street 04-18-2024, 01:50 AM
Replies: 9
Views: 804
Posted By kyle_blake
just to close this off. i bypassed this with...

just to close this off. i bypassed this with union fitting and my brakes work fine after bleeding the fronts. go figure all the other money spent for new lines and prop valve was not required. that...
Forum: Pontiac - Street 04-17-2024, 10:04 PM
Replies: 50
Views: 2,856
Posted By VCho455
Back in the day GM and most others measured...

Back in the day GM and most others measured carburetor CFM at 24 inches of vacuum. That standard is pretty much lost in the sands of time today. I'm suprised Mr Visard didn't print the inches of...
Forum: Pontiac - Street 04-17-2024, 05:32 PM
Replies: 23
Views: 1,134
Posted By Sirrotica
Only 1 year did Pontiac use 6 quarts, 1967, 6 in...

Only 1 year did Pontiac use 6 quarts, 1967, 6 in the pan, and 1 in the filter. In 1970 I worked at a Pontiac dealer on the grease rack while doing co-op in my last year as a senior in high...
Forum: Pontiac - Street 04-17-2024, 09:55 AM
Replies: 10
Views: 639
Posted By mgarblik
The most important factor from your initial post...

The most important factor from your initial post is to make sure all the caps are still assigned to a particular position and to a particular block. No mixing and matching! The rust, unless really...
Forum: Pontiac - Street 04-14-2024, 10:15 AM
Replies: 10
Views: 495
Posted By rolling money pits
You need a male 5/16” inverted flare plug, 5/16...

You need a male 5/16” inverted flare plug, 5/16 being the line size, not thread.

Any parts store should have it if not HD/ Lowe’s and the like.
Forum: Pontiac - Street 04-13-2024, 02:27 AM
Replies: 6
Views: 544
Posted By gto4ben
I got tired of guessing what performance the...

I got tired of guessing what performance the commercially available PP springs have so I created a spreadsheet that takes free length, outer dia., coil count, and wire diameter to calculate the...
Forum: Pontiac - Race 04-09-2024, 01:40 PM
Replies: 19
Views: 566
Posted By Tim Corcoran
OK here's the deal. I went back and checked every...

OK here's the deal. I went back and checked every single spring and at 1.85 (IH) I'm getting between 258-268 and at net lift from 608-618. I am very happy with these numbers, not sure why I came up...
Forum: Pontiac - Race 04-08-2024, 01:22 PM
Replies: 13
Views: 645
Posted By PAUL K
I used a trick factory tank in my 80 Trans Am. I...

I used a trick factory tank in my 80 Trans Am. I wanted to keep the "stock" look. Once the car started running solid tens the pressure became inconsistent. After trying a bunch of things to improve...
Forum: Pontiac - Street 04-06-2024, 09:04 PM
Replies: 13
Views: 475
Posted By PunchT37
Check you sender ground 1`st. Black wire that...

Check you sender ground 1`st. Black wire that bolts to the car underside somewhere.

Total ground = empty.
NO ground = full, to past full.
Forum: Pontiac - Race 04-06-2024, 02:19 PM
Replies: 19
Views: 566
Posted By chuckies76ta
Tim: How's the retainer fitting against the...

Tim: How's the retainer fitting against the spring inner and outer? Especially the inner. My understanding is the inner spring is .100 shorter than the outer.
I'm curious. What is the height of...
Forum: Pontiac - Street 04-06-2024, 07:37 AM
Replies: 67
Views: 2,583
Posted By Formulajones
Maybe I missed it but you had 40 psi before and a...

Maybe I missed it but you had 40 psi before and a new regulator gave you 8 more psi???

That's only 48 and these systems are designed to operate with a steady 60 psi so unless there is something I...
Forum: Pontiac - Street 04-05-2024, 05:35 AM
Replies: 20
Views: 1,206
Posted By Cliff R
Yoiu do not need to help the engine start with...

Yoiu do not need to help the engine start with additional throttle.

Set the fast idle speed to do that for you.

Usually one or two pushes on the throttle is enough to set the choke flap, raise...
Forum: Pontiac - Street 04-04-2024, 06:13 PM
Replies: 21
Views: 1,068
Posted By soupman
Napster- I have the Exact same engine specs as...

Napster- I have the Exact same engine specs as yours, my CR is 9.8, same exact cam, I idle at 700 with mine but it’s a 5 speed in a light 87 Formula, it revs very fast. I had my 47 heads done by...
Forum: Pontiac - Race 04-03-2024, 10:39 PM
Replies: 24
Views: 966
Posted By Skip Fix
those usually work just double check rocker still...

those usually work just double check rocker still contacts valve tip seem retainers it moves up too much.
Forum: Pontiac - Street 04-03-2024, 07:51 PM
Replies: 25
Views: 817
Posted By Sirrotica
The heads are listed as having different size...

The heads are listed as having different size valves, as well as compression ratios:

094 1.88 intake 1.66 exhaust 8.6 CR

140 1.92 intake 1.64 exhaust 9.2 CR

I'm fairly certain that they...
Forum: Pontiac - Street 04-02-2024, 01:14 AM
Replies: 20
Views: 1,206
Posted By Schurkey
If you readjust the choke pulloff, you also need...

If you readjust the choke pulloff, you also need to verify and perhaps readjust the linkage down to the fast idle cam.

The pulloff gets adjusted so the engine runs right--not too rich, not too...
Forum: Pontiac - Street 03-31-2024, 02:13 PM
Replies: 26
Views: 1,365
Posted By Steve C.
In Larry's post number 4 he mentions Bullet and...

In Larry's post number 4 he mentions Bullet and the fact if cores are available they could make a similar cam. Here is a example right from the Bullet Racing Cams hydraulic roller lobe list:

Lobe...
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