Update on 1/4 mile times. My car ran 4 tenths slower than it did with the last settup (CEL light on after 1st gear both times) 13.5 at 107MPH. My brothers GTO in the same trim ran a 12.98 @ 109.
My brother added a set of ported LS3 heads, .620 lift cam and 3600 stall and then ran a 11.8 @ 118.
My car is still limping along with a bad tune and stock 24lb injectors and pinging like a MFer.
This winters project for my car will include a set of 30lb Holley injectors ( 500+ bucks ) and an aftermarket ECM ( 1200 bucks). Hope it can come close to the GTO next spring. Wont be in the 11's but should be close to it.