I also have a 460. I am running the Mass Flo EFI. The stock in tank pump that came with my full kit was insufficient. After talking to the techs at Mass Flo, I settled on the external Walbro pump. I think the flow rate is 250l/h - I could be off on that. Anyway - my pressure is set to 40psi with no problems. I am also using the AN-6 braided fuel lines.
MK3.1 - Non-donor, 460 .040 over, Keith Black Pistons, Chromoly rod bolts, Procomp heads, Edelbrock cam, gear drive, Harlin Sharp Roller Rockers, Mass Flo EFI, midshift TKO 600, March Pulley System, Power steering, Moser 8.8, 3:31 gears, 3 -link.
Last edited by np630ss; 06-05-2012 at 04:55 PM..
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