thats the power range i would like to end up at. your cam seems alittle conservative for the compression. mine will be 11.5:1 comp and im thinking a flat solid cam of mid 260's on the intake and .650 lift. going in a 67 barracuda notch at 3350#. currently have a 4.30 gear with 28" tire. may have to put the 4.10's back in with this combo. very nice car you have.