I have a 91 z28 305 tpi that I'm putting a carbbed 350 in and bypassing the computer and I was wondering if I keep the in-tank fuel pump in but dont use it if the block-pump will suck fuel to the carb?I dont want to have ta drop the tank

 

that pump has far to much ppressure for a carb, you will either have to put a good fuel pressure regulator in line or even better and cheaper take it out and use an in-line fuel pump that puts out 4.5 to 9 psi or less.

 

I'm not going to use the in-tank pump,I was just going to leave it there and use the fuel pump on the block,I just dont know if that pump beeing in the tank will block the fuel from going to the carb