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donald1950 · 06-23-2019, 04:01 PM

i have used AirTex pull through fuel pumps and used a off / momentary on switch to prime the carb after the car sat for a while. have never experienced vapor lock. do not gut the stock fuel pump. use the momentary on switch prime the carb and that will also help the stock fuel pump. install the electric pump as close to the gas tank as possible. Stromberg and Holly carbs may not like the 4 PSI pressure of the electric if you choose to run one full time so you may need an adjustable pressure regulator set for approx
2 PSI.

06-23-2019, 04:01 PM	#4
donald1950 Senior Member Join Date: May 2010 Location: san antonio, texas Posts: 461	Re: Vapor lock question i have used AirTex pull through fuel pumps and used a off / momentary on switch to prime the carb after the car sat for a while. have never experienced vapor lock. do not gut the stock fuel pump. use the momentary on switch prime the carb and that will also help the stock fuel pump. install the electric pump as close to the gas tank as possible. Stromberg and Holly carbs may not like the 4 PSI pressure of the electric if you choose to run one full time so you may need an adjustable pressure regulator set for approx 2 PSI.