Ok breakin in the mini rammed afr 195 383 and noticed upon sharp crack of the throttle it has an intake pop . I am running custom burned prom with 24 lbs inj and 6 deg initial timing . my fuel pressure is set at 46 lbs . Could the pump shot in the chipbe to lean? any suggestions thanks!!:hail: :hail:

 

that is possible,does the pop do it in the same rpm or same spot the accelerator is at if so i would definately replace the TPS.

 

Replaced tps and adjusted to specs checked fuel pressure but only at idle not during the drive. it has a walbro 255 pump in it