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Search took 0.03 seconds. Search: Posts Made By: Gary H
Forum: Pontiac - Race 09-21-2024, 12:00 PM
Replies: 5
Views: 380
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
Views: 380
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
Views: 551
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
Views: 1,533
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
Views: 764
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
Views: 2,194
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: 4,603
Views: 798,282
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
Views: 1,106
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
Views: 1,106
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
Views: 2,890
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
Views: 1,595
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
Views: 1,106
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
Views: 4,160
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
Views: 2,520
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
Views: 2,530
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
Views: 5,343
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
Views: 8,231
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
Views: 1,561
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
Views: 2,186
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
Views: 1,338
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
Views: 1,449
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
Views: 3,943
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
Views: 841
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
Views: 1,761
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
Views: 1,752
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...
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