Well I've been all over this web-site trying to figure out what i should do. Right now i have a stock LO3 with TBI. In the near future, as in 1-2 years, I plan on getting a gm performance 330 horse 350. With that i plan to run carb until i can afford a Holley Stealth Ram. Right now i would like to up grade my stocker a little until i get the money for the crate motor. I have thought about swapping to TPI or Beafing up my TBI but both of those requring computer tuning which i really do not want to spend the money on. Now im considering carb. Could i get any HP gains buying slapping a 4 barrel on there or would i acually hurt HP because that is such a crappy engine? Please help i have all winter to play with this thing. Also if i where to go with a 4 barrel what kind of gas milage would i be getting. Thanks for the help. Derek

 

You will see a small increase with a carb, but If you dont plan on doing anymore than bolt ons you might as well just stick with tbi. Just get headers and a full exhaust and an open element air cleaner and youll be set. Dont switch to a carb unless you plan on heads,cam, and intake.Good Luck.

 

Ya i plan on doing Headers and full exhaust and already have an open element. Thanks.

 

Has anyone done this to a stock LO3 and like it?