Bypass vs Deadhead fuel pressure regulator question.

furyus2 said

If vapor lock is a consideration, getting rid of the Edelbrock carb is the first place to start. They have small float bowls that pick up alot of heat from the engine. I have a dead head system on my 64 Sport Fury using a Carter pump, and 1/2 inch line to the regulator. Then 3/8 line to each bowl. No issues.

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I have a 3310 Holley with a 1/2" phenolic spacer under it. Was using a Carter mechanical pump. Had the boiling fuel issue. Could not get rid of the problem in any conventional way. Finally after some very frustrating hot summers I went to a high-pressure in-tank Walbro electric pump, -6AN supply & return hoses, and a bypass regulator. No fuel problems of any kind since that work was done. Far as I'm concerned , the bypass regulator should always be used.