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Hacksaw · 11-25-2019, 07:52 PM

Fuel pumps are rated at free flow, so if you take a Holley blue and with 3/8" lines you hold the out line in a empty fuel can and run the pump for 15 seconds you should see slightly less than .5 of a gallon. This is adequate for this combo, but IMO borderline. I would use a min. of 250 gal/hr pump. Remember that line size, bends in the lines, filters, pick up location from tank, fuel regs, and fitting choices among other things can reduce the actual flow to the carb. Take caution when checking free flow. No burns....

11-25-2019, 07:52 PM	#6
Hacksaw Senior Member Join Date: Sep 2016 Posts: 882 Likes: 206 Liked 310 Times in 174 Posts	Re: Fuel pump requirements Fuel pumps are rated at free flow, so if you take a Holley blue and with 3/8" lines you hold the out line in a empty fuel can and run the pump for 15 seconds you should see slightly less than .5 of a gallon. This is adequate for this combo, but IMO borderline. I would use a min. of 250 gal/hr pump. Remember that line size, bends in the lines, filters, pick up location from tank, fuel regs, and fitting choices among other things can reduce the actual flow to the carb. Take caution when checking free flow. No burns....