I bought a sn2000 from craig at paradise for my 351c with 4v heads(big port) and no matter how tight i make the belt,even to the point were i might ruin the blower or my main bearings boost goes from 3lbs at 3500 rpm to 1psi at 5k.IT'S NOT BELT SLIP.Rotational torque on pulley is 25inchlbs.
I guess I should mention that before i fabed up the blower to the car i was making 300whp.Are the balls slipping?Or is the blower maxed out?
Running a 3.75 pulley with a 6.5 crank pulley.HELP