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Maintenance / Fuel Pump/ Vapor lock issues

« on: March 19, 2018, 12:21:05 AM »

Good evening all and Thanks for the add! I need a little help from some experts. I own a  pretty decent 1969 Camaro that I have had for about a decade. Regular "Bow Tie"with a 350 and some mods. It has been sitting for about a year so I drained all the fuel out, fresh gas and started it up.  After a bit the filter went dry and it died.  Replaced the pump with a Carquest aftermarket pump and could not stop a leak from the center of the line. Chinese junk I Imagine.  In the mean time I am working on a 1970 that I plan to sell that is having the same problem. During my research I have found that the fuel is boiling, Vapor Lock! Anyway back to my '69, it has a blocked off return line that I plan to hook up with a 3 line pump as soon as I replace all the rubber splices. That is supposed to cure the vapor lock.  My question to you is do any of you have one with a return line? I have a couple of other shells and they are all single fuel line cars. I can find nothing about '69s having a return line.  I even went through my assembly manual today and no mention of a return line. All the 3 line pumps I look at  are mighty tall and I am afraid I may have clearance problems I would appreciate any input You might have. I don't know what I am gonna do on the '70, I already installed heat sheath on the last section of fuel line next to the headers and still the same problem, runs for about 8-10 minutes and then you can watch the fuel boil in the filter and there is no return line.
Thanks in advance for any help you can give!
David