Weird Studdering Issue
That sounds like possible detonation. And an old engine like that probably has a ton of build up on the pistons.
Don't be so sure its the fuel pump, those things can last forever. And if it works, it works. And 2 gallons of gas is nowhere near an amount where going around a corner will suck air. Your pump sits inside of a bucket that always has gas in it.
Get a pressure check done? Could be a dirty fuel filter or injectors.
Does the rattlei n a can sound only happen after the engine is hot? Or does it happen after just 5-10 minutes of driving if you go WOT?
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