Im really new to tpi and got an 87 trans am gta that i am rebuilding at the moment. It came with a 350 tpi with a crack in the block and i am replacing the block with the same cast for it. I plan to do a 3" true dual exhaust in the future along with a few of the easy diy mods. In the mean time i noticed the cast on my plenum and stock runners is really crappy. I want to keep the car mostly stock at the moment but cant find what gaskets i should gasket match everything to. Any advice on which gasket to get to match or other solutions would be appreciated!

If i need to switch some things around i have around 400 dollars to throw at this portion of my project.

 

Fel Pro MS93160 if all stock, very high quality gaskets that fit well. I had good luck with them when I ran stock runners etc.

I would also take a look at the throttle body bypass mod while you’re at it, makes removal of the TB much easier and helps keep cooler air headed to the engine. If interested do a search on here, it’s easy.

 

Im in a fairly cold climate where its common to be pretty chilly in the morning but also can get pretty hot later in the day, i dont know how well a tb bypass would work. will have to do some looking. Thanks!!!!

 

I live in southern michigan, and ran mine that way back when we actually got winter. Theoretically, warming the TB is supposed to prevent icing in cold weather. I never had a problem with that... and it got pretty cold here. (yes, my Formula was my daily driver, even in winter.)

 

Is there any recommendations for a larger gasket to port out and and gasket match too, I would be willing to try that as well!

 

Your runners are to thin wall aluminum to port. There is no sense in larger gaskets unless you have large tube runners to match to.