512 build

I recently dynoed a similar BBC and swapped from an ported RPM Air Gap (627hp@ 5700) to a ported Vic Jr (660hp@6400)- it made the same low end tq, same peak torque (635lbs) and another 35 HP up top. I would talk to Joe about having him port the M1 intake. Dual plane on that deal will require a BIG 4150 to feed it properly.