swapping out to a mech pump

[cuzncarl]

im planning on changing out my 15 year old factory gm electric fuel pump to a mechanical fuel pump. it is finally taking a crap on me. i have a bbc 454 +.30 over, mild cam, 9.5/1 compression gm hi perf iron large oval port heads with a "stage one" port n polish (according to Santa Ana Speed Shop,, edelbrock performer intake, 750 ( now about a 780)holley DP carb by CJ engineering, and soon adding some lightnings on her. my question is which size mech fuel pump should i be running and which is reliable? then how should i plumb it? i have a fuel filter/water separator sys. that came stock that i want to keep in the loop and i just acquired a aeromotive 40 micron fuel fiter and marine regulator. do i put the 40 micron in front of the fuel pump then to the separator then to the carb?
Thanks

[jordy]

I went with the Clay Smith Cams mechanical pump on mine with an Aeromotive regulator plumbed in between it and the carb (which is a 1050 Dominator, and I've never had supply issues). I draw out of the tanks and through the fuel filter/water separator.

Looks like the website is down, but George was the guy to talk to when I set mine up years ago.

http://www.claysmithcams.com/

[Mitch]

Good advice Jordy .

[obnoxious001]

If you had not already purchased the regulator, I would have probably used a low pressure(7-9 lb) pump that required no regulator,, just to keep it simple for your mild engine. I ran a 632 cu in tunnel ram engine on the dyno with one, plenty of fuel pressure even above 6000 RPM.

[Mitch]

If you had not already purchased the regulator, I would have probably used a low pressure(7-9 lb) pump that required no regulator,, just to keep it simple for your mild engine. I ran a 632 cu in tunnel ram engine on the dyno with one, plenty of fuel pressure even above 6000 RPM.

Key word probably..

[obnoxious001]

Key word probably..

That was my way of being kind. With a single 750 carb,, even wide open throttle he probably won't be burning 30 gallons per hour? Dyno sheet from a dual carb, tunnel ram 496 I recently ran showed 225 lbs of fuel at 5900 RPM,, 589 HP. That one had a Holley low pressure mechanical pump.

Don't get me wrong,, George at Clay Smith has a great pump,, just don't think it's necessary for his particular application.