After running 440 for few hrs and parking for days , and cking fuel filter, which appears to be mostly empty, do we think trying a ck valve between pump and carb might help ? 67 440 Gtx thermoquad carb , carter pump , all fresh , just curious!
Sounds like workable planI put a cheap electric fuel pump on my 83 dodge van near the gas tank to push the fuel up to the mechanical pump. Works good !