If I put in a zz4 crate engine in my 84 camaro what kind of fuel feed will support it,stock mechcanical or electric. I was to the beleif that stock could. In the parts list the engine does'nt come with fuel pump. The GM conversion kit gives a electric pump and a pressure regulator I think. Why? olso my stock fuel pump has a return line Ive read and a after market require the same. correct me if needed and elaborate I'm aguy with alot to learn.

 

the stock one would work.....

but your better off with a performance pump. mechanical or electrical, your preference.

most people on this board prefer a electrical pump, i run a holly mechanical, GM reccomends a pump that supplies at least 70 gallons per hour at 6 psi.

so just find a pump that will meet those requirements.