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The TPI is what kills the engine from making big HP, those long runners and small plenum are great for low end torque but can't make HP.
How far do you want to push the HP? Just dropping in the stock LT1 will gain you 50HP, mild cam like a 305 would put you near 300-310 hp. If you are looking for 375-400 HP then I would go LS1 with a nice cam and heads.
Whatever parts you buy to build the TPI 383 would be the same parts you'd use in the LT1 block. So if you want a 383 build the LT1 383. Your have better heads to start with and an intake that can support the air flow.
Remember to keep some budget for a good set of weld in subframe connects, 3rd gens bodies flex! It it's a T-top car you might want to think cage or some other supports as well.
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93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
1) Build it
2) Race it
3) Break it
4) Repeat!!!
Last edited by Pampered-Z; 12-04-2009 at 09:25 AM.
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