512 in a 3200 lbs car here I have 11.3-1 compression and edelbrock performer heads and use a ultradyne .640 lift solid flat tappet cam car runs in the 10.20s i would think with your added compession,better heads and lighter wt you should be right were you want to be with a cam in that range ultradynes seem to make good power this cam was in a buddies 451 and he took it out to go with a bigger roller and really dident gain a thing.