These pumps are all very similar now, but I think Edelbrock mechanical pumps are the better way to go. I have the 6psi 1725 on my 347, and it's having no trouble fueling it. They also offer a 10psi version, pn 1715.
I came across this video:
https://www.youtube.com/watch?v=vgQ4dVLBT8g
Which is why I think the Edelbrock is the better way to go. Granted these are small Chevy pumps in the video. I know a few guys around here like the Carter mechanical pumps too, but I'm not sure how the castings, spring location, or pins compare.
Cale
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