Does CPP tank fix fueling overflow problems or is it the filler tube design or.......

[chevynut]

I made the check valve and it is similar to: http://www.classicchevy.com/chevy-ga...1956-1957.html

Are you sure the valve pivots freely and that it's installed correctly? IMO I'd still take it out and see if it allows you to fill the tank easier. It may be blocking the fuel for some reason.

http://www.classicchevy.com/assets/p...evy/29-102.pdf

[Rick_L]

Maybe I'm not up on all the issues, but 2 friends with 57s have said the CCI valve helps. Maybe I don't understand what it helps and what it doesn't help.