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Posts Made By:
steve25
Forum:
Pontiac - Street
Yesterday, 04:41 PM
Replies:
20
RA IV repro intake - for dummies
Views:
434
Posted By
steve25
If your Edelbrock D port heads are stock then...
If your Edelbrock D port heads are stock then their intake port openings are 1/8” shorter at the top than the ports in the repro intake you are checking out.
This would make the swap counter...
Forum:
Pontiac - Street
06-22-2024, 06:41 PM
Replies:
9
Engine Stalls for No Apparent Reason
Views:
294
Posted By
steve25
When an engine stalls at idle from a rich...
When an engine stalls at idle from a rich condition it will not just cut right out, the idle will get crappy first.
Just cutting out like your reporting sounds like it’s loosing spark.
When...
Forum:
Pontiac - Street
06-22-2024, 08:18 AM
Replies:
40
Dyno testing 3 intakes on my 462
Views:
1,619
Posted By
steve25
The change and resultant improvement in post #11...
The change and resultant improvement in post #11 is why for any car ( even a duel purpose vehicle) intake system averaged air speeds have be thought about carefully and that FPS number guided by what...
Forum:
Pontiac - Street
06-20-2024, 05:39 AM
Replies:
14
Loose HEI rotor
Views:
440
Posted By
steve25
And that size bottle is at least 35 bucks when...
And that size bottle is at least 35 bucks when you on,y need two drops, lol!
Forum:
Pontiac - Street
06-20-2024, 05:33 AM
Replies:
25
Roller lifters. Tick >> sewing machine sound. OK?
Views:
777
Posted By
steve25
I would loose no time in getting those Comp...
I would loose no time in getting those Comp lifters out of there while you still have Cam lobes in good shape.
You have spent enough time screwing around with them already!
Forum:
Pontiac - Street
06-19-2024, 08:50 PM
Replies:
14
Loose HEI rotor
Views:
440
Posted By
steve25
To keep the screws from potentially backing out...
To keep the screws from potentially backing out again if you have some fishing line cut a short section off and place it in each screw hole before you place the screws in and the line will act like a...
Forum:
Pontiac - Street
06-19-2024, 05:58 AM
Replies:
7
Late 60's 2 barrel heads
Views:
376
Posted By
steve25
Well yes, maybe the factory was playing around...
Well yes, maybe the factory was playing around with that in terms of a 350, but all the 1969 400 2 bbl motors got the small valve head and one or the other seat angle intake valves, and even that...
Forum:
Pontiac - Street
06-19-2024, 05:52 AM
Replies:
8
Another vac advance/starting question
Views:
450
Posted By
steve25
Your motor at restart is telling you it needs...
Your motor at restart is telling you it needs more air, hence it starting better with the throttle opened up a tad more.
There's zip for vacuum when cranking so that should have no part in the...
Forum:
Pontiac - Street
06-16-2024, 12:31 PM
Replies:
11
Best RAIV cam?
Views:
457
Posted By
steve25
These days with a flat tappet cam I would get...
These days with a flat tappet cam I would get lifters with the EDM hole and I would send those and the cam out to get cryo treated.
Forum:
Pontiac - Street
06-16-2024, 09:01 AM
Replies:
30
Radiator Trans Cooler Threaded Inserts Ruined
Views:
792
Posted By
steve25
By the time you yank out the Rad to have a Rad...
By the time you yank out the Rad to have a Rad shop do such work you would be better off just installing a separate trans cooler which would extend trans life better then the stock in Rad cooler...
Forum:
Pontiac - Street
06-13-2024, 10:09 AM
Replies:
39
Intake problem on 1970 T/A with 614 heads
Views:
1,094
Posted By
steve25
Please be clear. You posted your going to...
Please be clear.
You posted your going to run a 750 Holley, so what carb is the car running poorly with now?
No dough you have a vacuum leak either at the carb adapter or at the manifold...
Forum:
Pontiac - Street
06-11-2024, 11:27 AM
Replies:
5
Distributor Gear Roll Pin
Views:
234
Posted By
steve25
If you still have to drive them in then there...
If you still have to drive them in then there good to go.
Forum:
Pontiac - Street
06-11-2024, 08:42 AM
Replies:
17
Q-Jet on Olds 455 surprizes Nicks Garage
Views:
1,008
Posted By
steve25
When one looks at all the cars in NHRA classes...
When one looks at all the cars in NHRA classes that have been forced to use them and the times that those cars turn it becomes very clear that those who use a blanket statement that they suck just...
Forum:
Pontiac - Street
06-08-2024, 10:59 AM
Replies:
8
Quadrajet fuel leak
Views:
481
Posted By
steve25
It looks like that air horn was soaked in acid of...
It looks like that air horn was soaked in acid of some kind to clean it!
That air horn should have never have been reused by whoever is rebuilding those carbs if not that company.
Forum:
Pontiac - Street
06-07-2024, 04:04 PM
Replies:
16
NEED ADVICE ON MY 400 PONTIAC BUILD
Views:
857
Posted By
steve25
The only thing I see that concerns me is running...
The only thing I see that concerns me is running that cam with the #13 heads.
Your cylinder pressure will be right on the edge of being too high for pump fuel.
I would go with the XE268 or maybe...
Forum:
Pontiac - Street
06-07-2024, 02:56 PM
Replies:
11
Porting and valve seats
Views:
724
Posted By
steve25
With a 455 if you’re not intending to have a need...
With a 455 if you’re not intending to have a need to make peak hp above 5400 rpm then you do not need to step up to a 1.77” exh valve.
Just get a set of new intake and exh valves in the stock...
Forum:
Pontiac - Street
06-06-2024, 03:14 PM
Replies:
31
Strange Timing Problem
Views:
1,030
Posted By
steve25
There’s no down side to running 14 or even 16 as...
There’s no down side to running 14 or even 16 as long as the motor cranks over well when heat soaked and you can get the motor to idle as low as you need.
Forum:
Pontiac - Street
06-06-2024, 07:13 AM
Replies:
19
Easier starting
Views:
1,131
Posted By
steve25
There’s zip for vacuum when your cranking the...
There’s zip for vacuum when your cranking the motor so I don’t see any point to the comment in post # 8 other then having too little base timing, or so much that the motor cranks slow.
Forum:
Pontiac - Street
06-03-2024, 05:50 AM
Replies:
30
New motor tuning mystery
Views:
1,324
Posted By
steve25
Glad to hear it's better, but why did you break...
Glad to hear it's better, but why did you break in the Cam in 3 ten minute sessions ?
I have never done less then a straight 20 minutes.
Even on hot day and with running the motor unloaded it...
Forum:
Pontiac - Street
06-02-2024, 08:51 AM
Replies:
30
New motor tuning mystery
Views:
1,324
Posted By
steve25
I can’t put enough emphasis on checking your...
I can’t put enough emphasis on checking your total timing with out vacuum advance hooked up at 5000 rpm to confirm that it’s not over advancing on you.
Forum:
Pontiac - Street
05-31-2024, 04:10 PM
Replies:
26
Timing cover crank seal issue
Views:
998
Posted By
steve25
That seals OD coating is likely to dry out and...
That seals OD coating is likely to dry out and cause a issue before the actual crank seal lip does..
Get a good seal with a metal OD and just put it in with some gray form-A- gasket and then sleep...
Forum:
Pontiac - Street
05-28-2024, 05:45 PM
Replies:
62
Read my plugs
Views:
2,903
Posted By
steve25
With brand new plugs and not being at a track it...
With brand new plugs and not being at a track it will take at least 3 full throttle thru the gears runs to see anything worthwhile in terms of the plug being too hot or not.
And they need to be...
Forum:
Pontiac - Street
05-28-2024, 05:22 PM
Replies:
13
455 busted: 60919 cam, Rhodes Lifters, bent push rods
Views:
807
Posted By
steve25
If it’s as you say a stock-ish deal, then with...
If it’s as you say a stock-ish deal, then with stock springs and retainers that cams .470” lift might have been too much for the clearance set up on number 4.
Even with just 290 psi of open...
Forum:
Pontiac - Street
05-26-2024, 11:40 AM
Replies:
11
Porting and valve seats
Views:
724
Posted By
steve25
I have had and used the 4 series, 5 and 6 series...
I have had and used the 4 series, 5 and 6 series ( 6X) milled .060” and have had no issues.
But whenever you mill them all the holes on the deck surface should get treated to a slight chamfer with a...
Forum:
Pontiac - Street
05-25-2024, 03:51 PM
Replies:
5
TH400 transmission help
Views:
378
Posted By
steve25
What heads are you running? The size of the...
What heads are you running?
The size of the chamber effects the level of idle vacuum you pull also.
I would also hope that with a cam of those specs that your running at least 9.5 to 1.?
Showing results 1 to 25 of 500
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