Hello. I Am Doing A Rustoleum Rebuild On A '72 400 with 55,000 miles on it. It Will Be A Temporary Engine Until I Build My Stroker In The Future.I Do However Plan On Stepping It Up A bit By Adding A Fresh Set Of Big Valve Mildly Ported Closed Chamber Heads I Have, A R.P.M. Intake With 750 Holley & A Cam. The Cam I Do Not Already Have, But Was Looking At The Whiplash Grind From Hughs & Have Some Questions.On A Desk Top Dyno It Appears To Make Pretty Good Power With A Fairly Choppy Idle.I Do Not Really Care About The Choppy Idle As Much As The Power Output. So, What Aspect Of The Whiplash Cam Accounts For The Choppy Idle Quality? Can I Lower That And Retain Or Better Yet Achieve even more Power?Here Are The Whiplash Specs.

Lift .518 @ 1.5 Rocker Arm
DUR @ .050 229/242
LS 107 deg
IO 12.5 BTC
EO 53 BBC
IC 36.5 ABC
EC 9 ATC