Mech Fuel Pump Drag Racing 318

72DMag, Just a thought. How about a booster pump on a switch.
Holley makes a Mighty Mite pump in 1.5-4 psi,4-7 psi and 7-10 psi.
I have been using these for years on street/strip cars. I have the 1.5-4 psi on my 63 (318) now using the mechanical pump and switching on the electric when necessary. For a test I removed the mechanical pump to see if the Might Mite (1.5-4 psi)would run a 360 4bbl Thermo Quad Cordoba on the street and it did the job.Wide open passes not a problem.
Holley, Mr.Gasket, K&N all have them,they are rebranded same pump. Only about $50.
Again Just a thought. Oh one more thing. When the engine is running you can't hear them running.