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Showing results 1 to 25 of 89
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Posts Made By:
Gary H
Forum:
Pontiac - Race
09-21-2024, 12:00 PM
Replies:
5
74 Shaker air filter wfo
Views:
413
Posted By
Gary H
Your air cleaner base modifications look great! ...
Your air cleaner base modifications look great! I misunderstood the original post and though he was referring to the whole WFO set up including the base. IMO, without an additional snorkle(s) like...
Forum:
Pontiac - Race
09-19-2024, 04:58 PM
Replies:
5
74 Shaker air filter wfo
Views:
413
Posted By
Gary H
I don't think the factory lid will work since the...
I don't think the factory lid will work since the air cleaner element is very tall and extends into the scoop opening. BTW, I am not a fan of this setup for a higher horsepower car. IMO, the air...
Forum:
Pontiac - Street
09-09-2024, 02:24 PM
Replies:
13
Which main seal?
Views:
566
Posted By
Gary H
I have used probably 40 BOP 1 piece Pontiac seals...
I have used probably 40 BOP 1 piece Pontiac seals in my, and customers engines. If you follow the instructions to a T, they won't leak. Very happy with them
Forum:
Pontiac - Street
08-29-2024, 07:58 PM
Replies:
35
Q-Jet Misbehaving, Seems To Not Be Using Idle Circuit
Views:
1,579
Posted By
Gary H
What's the vacuum reading at idle? Possible...
What's the vacuum reading at idle? Possible vacuum leak?
Forum:
Pontiac - Street
08-27-2024, 06:25 PM
Replies:
23
Pontiac Trivia
Views:
785
Posted By
Gary H
Jeeeez, you guys are good!
Jeeeez, you guys are good!
Forum:
Pontiac - Street
08-27-2024, 08:12 AM
Replies:
47
Improving airflow
Views:
2,252
Posted By
Gary H
And, if an automatic transmission, helps by not...
And, if an automatic transmission, helps by not loading the convertor which builds heat.
Forum:
67-69 Firebird TECH
08-26-2024, 07:24 AM
Replies:
4,606
eBay sightings
Views:
799,850
Posted By
Gary H
I've actually CC'd #62 heads that came in at 78...
I've actually CC'd #62 heads that came in at 78 CC's. Just did a set of #13's a couple of days that came in at 76 CC's
Forum:
Pontiac - Street
08-26-2024, 07:12 AM
Replies:
20
What is the most likely cause?
Views:
1,125
Posted By
Gary H
Higher rpm put much more of a load on the spark...
Higher rpm put much more of a load on the spark plugs, which will show up if they are fouled. Also, todays ignition systems with coil packs, variable timing, etc. has a much hotter voltage than...
Forum:
Pontiac - Street
08-25-2024, 07:21 PM
Replies:
20
What is the most likely cause?
Views:
1,125
Posted By
Gary H
Absolutely the first thing to check is your spark...
Absolutely the first thing to check is your spark plugs. Pull the plugs and see what they look like. If they are dark or black, then there's your misfire. If I understood you from an earlier post,...
Forum:
Pontiac - Race
08-20-2024, 06:01 PM
Replies:
44
Why don't wide port eheads Rev pass 7,000rpm?
Views:
2,917
Posted By
Gary H
It's kinda a long story but when I dyno'd the...
It's kinda a long story but when I dyno'd the engine they had a problem with the water flow holding it at higher rpm's. When it got to 7200 RPM the readings got weird and so I just called it a day. ...
Forum:
THE LOBBY
08-16-2024, 05:19 PM
Replies:
33
No VIN on factory installed block?
Views:
1,615
Posted By
Gary H
Only time I've seen that is with a SR (Service...
Only time I've seen that is with a SR (Service Replacement block). Are you looking in the correct location(s)? Most common area is along the side of the timing cover about halfway down between the...
Forum:
THE LOBBY
06-29-2024, 12:44 PM
Replies:
17
Forged 4.375” Cranks on sale $399
Views:
1,112
Posted By
Gary H
Just order one. Thanks for the heads up!
Just order one. Thanks for the heads up!
Forum:
Pontiac - Street
06-21-2024, 07:27 AM
Replies:
40
Dyno testing 3 intakes on my 462
Views:
4,200
Posted By
Gary H
Definitely try a 1" to 1.5" inch spacer on each...
Definitely try a 1" to 1.5" inch spacer on each intake when you dyno them. On one of my street cars with an engine similar to yours, adding a 1" spacer to the RPM intake picked up a tenth in the...
Forum:
Pontiac - Street
03-10-2024, 04:39 PM
Replies:
33
CAM CHOICE
Views:
2,728
Posted By
Gary H
I have a shop here in Jacksonville, Florida and...
I have a shop here in Jacksonville, Florida and do nothing but Pontiac's. We've built over 150 Pontiac engines. I think the combination you described is pretty good all the way around. Your vacuum...
Forum:
Pontiac - Street
01-26-2024, 12:44 PM
Replies:
9
400 small register crank strength
Views:
2,537
Posted By
Gary H
Thanks Paul! I thought I had heard that a while...
Thanks Paul! I thought I had heard that a while back too. I'm going to use it.
Forum:
Pontiac - Street
01-26-2024, 09:27 AM
Replies:
46
Who has successfully installed a hydraulic flat tappet cam recently?
Views:
5,376
Posted By
Gary H
I've built about 10 flat hydraulic flat tappet...
I've built about 10 flat hydraulic flat tappet lifter Pontiac engines over the last 2 years. No issues on them. I only use Hy-lift Johnson lifters though.
Forum:
Pontiac - Street
12-08-2023, 06:44 PM
Replies:
65
Too big main clearance after alignhone
Views:
8,260
Posted By
Gary H
That's a BIG variance from main to main. If...
That's a BIG variance from main to main. If those numbers are accurate, I would take it back to the machine shop and see what's up. Just a FYI, Clevite bearings generally will measure thicker than...
Forum:
Pontiac - Street
12-06-2023, 04:18 PM
Replies:
25
Fuel delivery issue
Views:
1,566
Posted By
Gary H
If the pump has a return line from the pump to...
If the pump has a return line from the pump to the tank that was still hooked up during the 15 minutes of run time, then most of the fuel went back to the tank through the return.
Forum:
Pontiac - Street
11-27-2023, 02:43 PM
Replies:
24
engine surging
Views:
2,208
Posted By
Gary H
What power piston spring did you put in the carb?...
What power piston spring did you put in the carb? The ram air IV cam doesn't create much vacuum in a 400 and the wrong spring may be causing the issue. You may also want to check and make sure you...
Forum:
Pontiac - Street
11-27-2023, 09:46 AM
Replies:
5
No spark with FiTECH
Views:
1,343
Posted By
Gary H
Check and see if the handheld is showing any RPM...
Check and see if the handheld is showing any RPM while trying to crank the engine.
Forum:
Pontiac - Race
11-15-2023, 03:01 PM
Replies:
19
Pcv grommet?
Views:
1,463
Posted By
Gary H
If the valley pan you have is the single piece...
If the valley pan you have is the single piece one, it is very prone to suck oil through the PCV valve. I never use those. I'd buy a reproduction piece pan and use that.
Forum:
Pontiac - Street
09-07-2023, 07:18 PM
Replies:
41
Rod Clearance - Tracking down .005
Views:
4,031
Posted By
Gary H
.003 is a little on the loose side for a strictly...
.003 is a little on the loose side for a strictly street engine IMO. I'd try a different brand bearing to see if it's a little thicker to get you closer to .002 or .0025. In my experience, Clevite...
Forum:
Pontiac - Street
06-08-2023, 07:12 PM
Replies:
11
Oil support rail issue
Views:
842
Posted By
Gary H
Sure sounds like it. I'd measure the grove and...
Sure sounds like it. I'd measure the grove and then contact Ross.
Forum:
Pontiac - Street
05-30-2023, 07:48 AM
Replies:
21
Oil pan gasket
Views:
1,763
Posted By
Gary H
X2 on the above. I always use the cork seal on...
X2 on the above. I always use the cork seal on the seal with the tabs on it. Had much better results over the years with it.
Forum:
Pontiac - Street
05-29-2023, 12:11 PM
Replies:
22
455 identification.?
Views:
1,756
Posted By
Gary H
No, It's the same identical casting as any other...
No, It's the same identical casting as any other block that year. Pontiac used the same casting number for all 71' - 74' 455 blocks except the SD blocks. The 73' - 74' 455 SD blocks had multiple...
Showing results 1 to 25 of 89
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