318 Engine Running Like Crap - Help Needed

I'm out for a drive on the highway. While driving I begin to notice a hesitation at 65 mph.
It feels to me like a failing fuel pump. I do a return trip and get the same hesitation. I then go out 2 hours later and it starts to sputter badly over 30 mph. Luckily I'm in the city and I begin to limp this ride home. It stalls twice on the way and is chugging badly. Periodically, when the clutch is in I'll get it to rev, but never under any load. Plus, it lets out one wicked backfire at one point. Its final stall is 50 yards from my house and I manage to roll it into my driveway. I believe the whole time its my fuel pump. Well I start it up tonight with a new fuel pump on it and it is running like crap. Very inconsistent idle between 500- 900, No throttle - if I give it throttle it bogs and will die on most occasions. I made a video of it running but can't get it to load. Sorry
Engine specs 318 .020 over, with 302 cast heads milled to 58cc, a Comp cam XE262, Edelbrock Performer intake, Edelbrock 1406? carb (600) that has 700 miles on it. The carb flap is open (not choking itself). New fuel pump, points distributor - new build from halifaxhops two months ago. Power brakes. Standard transmission
Any suggestions on what I should start with?


If you have changed the fuel filter and the pump, also remove the sending unit in the tank and make sure the inlet tube on the sender unit is not plugged. It should have a sock (filter )over the end. These can rot out over time ,dislodge and block the inlet. Also a good time to check fuel lines for kinks.