Stock computer's limits
 

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.

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.

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

You will need a tune an injectors.

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.

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