Hi there peoples i have just fitted at 302 clevo with lumpy cam flattop pistons 465 holley card mech secondaries when u start up it fine but once goes into drive or any gear idle slows down and stalls the car will run under high revs no problem could this also be fuel pump its a standard pump on side of motor ,or carby problem timing is set to 10 Degrees or could dizzy be wrong some how its electronic

(accidental double post)

Vacuum problem with the power valve in the holley see the othewr post