Your original post was for a street car with AC and creature comforts. That 260/264 cam is more of a bracket race cam. It will make 700 hp on the dyno but I'm not so sure you'll want to drive it on the freeway in overdrive with the AC blowing. It will probably suck enough fuel to make a sheik wince since the extra overlap will be blowing the intake out the exhaust port at cruising speed.

If you want decent fuel economy while cruising down the freeway in overdrive then you'll need to go with a much smaller cam. If you're going to be bracket racing and don't car about using overdrive then the 260/264 will be fine.