I have 89 350TPI L98 Formula that runs great, but has 160K miles now. I want to rebuild or replace soon. I was considering a 350HO, or ZZ4 and placing my TPI on top. Or possibly having Jasper rebuild it for more horsepower. I am looking for ideas that would be fairly easy and painless as possible, to take the engine out, rebuild for better than original HP (like 330) and get it back in without feeling like I had to modify too much. But If I had a solution all mapped out that someone else has done in a similar situation, I would love to hear the details.

Thanks for all of your help,
Brent

 

never built a tpi car but lot of people here say the factory intake and runners is a big restriction in the system. i'm not sure what HP the stock set up will support. if it were mine i'd prefer to keep the factory l98 block and all unless the cost was way more than a crate motor.

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