[V8] returnless fuel systems and vapor lock

[NicolCS at aol.com]

Wouldn't a returnless fuel system be more likely to vapor lock?

No, the fuel is under about 50 psi pressure which raises the boiling point 
for one thing, plus the problem with vapor lock is that mechanical fuel pumps 
don't pump well when there's pressurized vapor in the lines or pump.  With the 
electric pump submerged in fuel in the tank it easily compresses the vapor and 
blows it through an injector.  It might run funny for a few seconds but won't 
disable the motor.  A return system works better 'cause the hot fuel is 
cleared right out and back to the tank but returnless systems are well proven too.
Craig Nicol