Fuel delivery???

Just a thought, I'm replacing my stock mech. pump & line with a 110gph Holley mech. and 3/8" line. I'm having Don at FBO bore the pump out to true 3/8". It will help get to the true 110gph as rated. He'll do this for $70. Not neccessary, but if your running 3/8" sending unit/line, it's something to consider if you want to get the max out of your pump.

I also noticed the Carter I have doesn't have a true 3/8 opening. And 3/8 fuel line barbs don't have a 3/8 id either. I drilled out the barbs to 11/32 but that was as far as I could go before they got really thin. The pump had a casting flash on the output side that actually had to opening cut down to approx. 1/4" so I ground out the flash. It then had about 11/32" opening throughout. Not quite 3/8 but close enough for my application.