QUOTE (SPADEKREATIONS)
short of going into the motor ..
cold air intake
headers/exhaust
oversized throttle body
Yup, also 1.6 roller rockers... The main thing with an LT1 is going to be tuning. (And make sure you have this before adding a larger throttle body or you'll blow the tranny!) INC use's Bryan Herter at pcmforless.com that cat knows LT1's.
If you want an all out balls to the wall LT1 forge the bottom end and get a Lloyd Elliott stage 2 top end kit! You'll be running with the big dogs then! If thats not enough stroke that bitch and lift the front wheels off the ground!