LS1.6

I have a LS1 that has gone from 346 c.i.d. to 383 c.i.d. and a Lunati cam that has 230 lift <----not sure about that....Stock heads with port and polished....Flowtech Headers..and stock fuel system....Can my stock computer and my stock fuel system keep up the demand of my motor or will I need a tuned computer and upgrade the fuel system....I plan on having the computer programed by FAST but I need to break in the motor...please let me know if I am just a fool in the search of happiness or am I heading in th right direction.

Frost

iTrader: (45)

You will need computer tuning. This is well within the boundaries that the stock PCM can work for. You will be on the edge of things for fuel; likely will need injectors and possibly a new in-tank pump like a walbro.

Tuner@Straightline

The the custom opperating systems avaibable to the tuners today, really the only limit is how big of an injector you can control.

YellowToy/A

iTrader: (1)

You will need a tune an injectors.

Tainted

iTrader: (9)

the stock pcm can put up with some pretty insane hp and control a radical engine. youre very well within the limits of what it can take. however a fuel pump and bigger injectors would help out.

RE AND CHERYL

iTrader: (31)

Yes the stock PCM can control it (with tunning).

No I would not drive it until you at least get a mail order tune.

You probably need bigger injectors.

R'e