I've put a holley blue pump on it (used from DrDirt) and new regulator(thanks pshull)and the pressure still isn't stable. It jumps from 3 to 12 psi.My question is. The sending unit in the tank. I never dropped the tank so I dont know what BS job was done to that. If there is still a pump in it. What do I need to do to correctly fix this problem? It already had a cheapo mr.gasket pump on it when I bout it. It ran ok. after puting on the MSD the problems started with the motor popping at 3-4k RPM(no tach yet so thats a guess)like starving for fuel. What do I need to do? please help. thanks Rob