I was thinking that, 67 is not the same as a E body. Ask Fine Lines or make it yourself if you do change lines.

I temporary took out my fuel filter and put in a brass tee and used hose clamps to hook up my fuel pressure gauge. Easy, did not have to cut or modify anything to do it. I might have a picture of it somewhere but too tired to look for it.

Another thing is, when my car was breaking up at hi rpms, it turned out to be spark plugs, just needed fresh spark plugs. My manual choke is hard on spark plugs.

The almighty dual quad hemi and 6 barrel 440s only had 5/16" fuel line from the pump to the carbs, BTW.

https://board.moparts.org/ubbthreads/ubbthreads.php/topics/1628244/1.html

I found this thread that you put alot of info into, pretty much lays out everything I need to do

Wow! I sound like a "broken record", man I am getting old broken record? anyone remember broken records?

went thru the same thing early this summer. return line ends the problem.

Thx guys, I'll likely go 3/8 tank to pump, filter/separator after the pump and 5/16 to the carb. I'll add an extra line to the sending unit (I've got a friend who's good with a TIG) for the return

Wix 33054 is the pn. The application chart isn't correct; I have the wrong one to show for it.