Vapor lock is caused when the gas does not move fast enough in the fuel line and has time to get hot, turns to vapor and then stops. This can easily be caused by a weak/dead mechanical fuel pump; it is an "easy fix" to add an electric fuel pump to solve this issue. I would therefore put a new mechanical fuel pump, just in case yours is weak indeed.
Most electric fuel pump will push more volume/pressure than a mechanical one, so that could be why your carb leaks, the pressure has blown some gaskets.
A good mechancal fuel pump with the proper size line will not allow vapor lock.
The nice idea about having the fuel go from an electric pump through the mechanical one is that it looks stock...
Last edited by wave1957; 12/30/2009 3:39 AM.
