what compression ratio ? piston type? chamber style ? all those cams may be a little small unless its a low compression deal. a 512 stroker eats a lot of cam. a 112 and up lsa will tame the idle some... better than stock heads will like more cam also.. tall gears are no issue for the torque monster! a wide power band from 2600- 6000 rpm is where this combo lives anyhow... torque will not be an issue and with aftermarket heads you will keep some power up top... in the end it will come down to intake opens and exhaust closing events ....