thanks for the replies , i actually picked up the car last night from the shop, and took it out for a ride. the car has fidanza flyweel and clutch,steeda shifter+drive shaft, upr upper and lower control arms, and ford racing suspension. its freezing cold out here so i had to try the car on the freeway on 4th gear. it read 15psi boost at 6000 rpm. called kb ,they send the wrong size . got to take it slow till i get the wright pulley.
I don't want to blow the motor after all it only has 1500 miles, but i want to run mid to low 11s which is possible whith the 11.5psi whipple charger at around 470hp and there a lot of them at the track here, and none of them blew out yet.