What do u guys think about this: my bro has an 05 c6, and he's getting a entire top end kit from vengeance racing, basically replacing from cam on up....he's giving me his stock ls2 parts from the vette. My truck is an 06 4.8L, typical bolt ons and tune....i checked around and his ls2 parts will bolt on my motor with no mods neccessary...what do u think the increase in hp/tq will be? im looking for advice and opinions here. parts that he's giving me are: cam, pushrods, complete 243 heads (stock), intake manifold, throttle body, all from his 05 c6 vette. Will my tuned ecm run this for awhile til I retune it?