To maximize the motor power, no shelfed cam will work great from a street car company, any cam that makes HP on the street will fall flat on the dirt, Pennywise 402 pulls harder in the dunes than most 425's because the cam is made for the full package,
A lot of stuff works on the street, the dirt will get wheel shock from the gear box, so it needs to work correctly, there really isn't cams that works with names like stage-1 stage-2 with 660lift springs,
I do not really know what that means, what i do know is depending on the gear and the tire size, the car weight, and the style of heads will determine, the advancement in the grind,
Sandcars work good with torque that roll into HP, Torque is determined by ground advancement and intake centerline, hp is determined by duration and lift, and lobe ramp angle,
Now with that being said, the spring will make or break a weekend, there is no such thing as .660 lift spring, it really depends on - Seat pressure, and over the nose Lbs, throwing a lot of spring on a lifter that will not take it, will work, but not for long,
A least what is the install height for starters, then we can think about lobe lift and that will lead into a proper spring,
What lifters are in the motor?
