Hey, I'm looking for help. I've just rebuilt my stang 5.0 1991 gt with a v-1 supercharger. The problem I'm having is it is backfiring through the intake and reving up around 3 grand when it pops. It sounds like a lifter but it doesn't pops on every rotation of the motor, only when the motor slows about 750 rpms is when it pops or backfires. I've checked the compression and number 1 has 130 lbs, 2 has 130 lbs, 3 has 127 lbs, 4 has 130 lbs, 5 has 110 lbs, 6 has 130 lbs, 7 has 125 lbs, 8 has 130 lbs. I'm running about 6 lbs of boost. I've got the rotor button is facing number one plugwire at top dead center on compression stroke. Also when it does fire up it floods really bad, but no smoke. Any help would be great.