so at the mom I've got just a ecotec 6 with a few mods. I know it would be alot easier to just buy an 8 instead Of an l67 change over but it seems like so much fun to do the conversion. If I were to do the conversion and work it a bit it would cost me more than to get the 8 but can anyone give me an estimate on power if I did the conversion but upgrade the l67 with cam and rockers, manifold insulator, intercooler, bigger pulley upgrade, supercharged heads, double row timing chain, hydraulic roller lifters, air to air intercooler plate and a tune and top it off with a 3.9:1 LSD, shift kit and bigger stallie. Know it would be heaps easier and cheaper for the 8 but think this would be a ball. Can't decide...love to hear from people who have gone down this road.