Which mechanical fuel pump are you guys using on your mild 450-500 HP engines?

Always used the Carter street/strip pump from Mancini.

I have had good luck with the Carter M6903. I think the M4862 is similar but runs at a higher pressure.

my mechanical pump runs 11 psi.so i have to use a regulator.dont know which pump it is.came with car

if this is a street b or rb carter 6903 hv std psi

small blocks street 6902 hv std psi

Still running the Clay Smith pump here....

Which motor and how many carbs?

440 with a Holley 750

I would and have used the Carter Street hemi pump standard pressure (not the high pressure one ) version with three internal valves
I used them on my old M.W. NHRA Stocker and on NHRA stocker street hemi motors also, works good last a long time.
The best test I know of on testing fuel volume on drag cars is if you can jet the carb up rich enough to slow it down in the 1/4 mile you have more than enough fuel volume for that combination that day: scope :