Found my dads original 1971 duster!

dads71 said

Hmm. I’m not sure about that. I’ll have to ask him. I didn’t know you tuned a fuel pump to the motor. Oh the stuff I learn on here! Lol

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To be clear, it’s not the pump that has to be tuned, it is the carburetor. I just doubt that an out of the box Carter is going to flow fuel correctly for your motor, but I will admit that tuning a carburetor is not my thing.