Fuel pump recommendation
 

I installed the rebuilt original engine in my Z28. Immediately the fuel pump had fuel pouring out of the vent hole. I installed a brand new from Napa and had flooding issues. Installed a fuel pressure gauge and 12.5psi.

I am looking for a replacement now and any recommendations would be appreciated.

Anyone have experience using a Carter M4685

Anyone have a Delco replacement

Anyone have an original 40669 rebuildable core.

Thanks in advance!

Just bought this one for my 327, haven't checked the fuel pressure so can't verify that. It seemed to solve the issue of hot starts due to overpowering the needle/seat though. It's the cheapest usable pump out there I think, but I did have to reclock it, and tap the holes, since every other hole has threads. I believe it was an 8mm/24 tap???