
Originally Posted by
02GrandPrixIraqVet
Dont really get what your saying here, Ive got a gen5 2nd L67 engine in the garage and will have an IS3 cam shortly. Why would this be hard to tune and reccomend starting with a 3.4 pulley on the Gen5? No IC either or meth. Looking to have Gen5, headers, IS3 cam, ported heads 130lb springs, E85, HPTuners, 65 lbs injectors. All said and done. Heads Im looking at getting should be at least = to or better than the IS3 heads their Mizly motorsports P/P with TI retainers oversized valves and 130lb springs. If I plan on building this with the 2nd L67 thats in the garage would be better to find a different short block?