ported LT1 manifold?
as far as tuning goes. i would pick up autotap and tuner cats. that way you can tune yourself as far as you progress with your mods.
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Hypertech is O.K. for a basically stock automatic car, useless for a modded engine.
I have a Moroso CAI and Mid length Pacesetters (SMOG LEGAL) with High Flow Cat, and straight pipe all the way back and the car is so much qiucker when i installed them from stock. I put down 270 RWHP and 316 RWTQ in my 94 Z28 with auto tranny!
i love my K&N intake if you dont have one, its a good thing to pick up.
skip on the underdrive pulleys. they wont net you anything worth your time or money.
you probably wont need a tune until you have a cam in or are alot further modded than you are now.
Check on http://tunercat.com/ under the winflash tab...
You will have to buy the cable for your computer to the OBD1 port and then buy a $19.95 file for your VIN#....

