Re: Need fuel help
Needs to be be vented so when the gasoline level goes down the vent will let in some air so you don't end up with a vacuum in the tank.
Should also be vented the other way so when in it gets hot and the gasoline expands it can push some air out. If the cap you got now is airtight you can buy a two-way vented one or just drill a 1/16" hole through the one you got and all will be well.
Putts drives a 1965 customized Galaxie. Rebuilt 390, 4100 electric choke on a Performer, MX, AC, PS, PB w Scarebird front discs on Cragar 17" S/S.