I have a 400 with a cam of 214/224 duration and 112 lobe separation, I am wondering if any one knows what would happen with Rhoads lifters? Would this "change" the amount of separation at an idle to sound like a more aggressive cam? Would I be better off with say a cam with 205/215 108 or 110 separation? I am running a 4-speed with a 3.55 axle ratio. I also think that I am running approx 8 to 1 compression ratio. Thanks to anyone who has done any of this or knows more about this than me!!!