Hi all, been looken around here for a while now, great info from a lot of people here. Anywayse, looking to upgrade again, a few years back I put a 5.7 multiport fi suburban engin into my s-10 and it was fun for a while. Now my question is, can I make the 350 into a 383 and keep mpfi? 97 was the last year for prom chips, I had the dealer back home reflash my 4.3l ecu (same p/n as 350's) to a vin R 350. Does the computer even need flashed or will the o2's pick up on the lean and compensate for it? currently I would pass emmisions if I ever needed to and when i pop the hood it looks like gm put it there, i dont wanna go to a toilet bowl if i can help it.
Thanks in advance
Doug