Hey guys help me choose a cam....hyd roller or solid ?

ratbastad said

Hi Brian...what kinda lift are we talking about here?

Also, I understand the 750 will increase airspeed in the intake, but why this duration and why the 4 deg advance?

I'm just interested in understanding the actual logic behind the cam choice, thats all..

Thanx !!

Rat

Click to expand...

The 830 annular carb can pull too much fuel at high rpm. With that gear and tire, you need some rpm and you need power at that rpm. That's why I would run that duration.

Lift would be around 560. The advance is to help kick up compression and get the port flowing as early as possible...