I am running a 12A in a VW Beetle, I am going to use a stock Nikki carb, but I am using a facet fuel pump (5-10lbs of pressure), Do I need to use a return line. I didn't use one with the VW motor with this pump and the pump never had a problem with it. I was wondering if the carb would not work properly?
Thanks

 

you need a return. A nikki cant handle more than 6psi.

 

I assume then If I added a regulater set at 5-6psi I need no return then?