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Ok so my fuel pump went out a couple weeks as go. 74 challenger with stock low cr 440. Headers intake 750 holley. No big deal. I put an electric pump to get by that was laying around. Today I get my new pump in the mail. Put it on. Remove electric. All back to normal. It makes a strange noise...
I have been thinking of trying a new Holley street demon 750 on my440. They are similar to a thermoquad. My cam is 284d/484lift. 10.3 to 1 compression. All else pretty stock Anybody tried one with that cam.
I rebuilt my 750 double pumper. I laid everything out carefully between primary and secondary. Except the nozzles. One is a 28 the other is a 32. Am I correct that the smaller nozzle is for the primary and the larger nozzle is for the secondary? I know the jets are bigger in the secondary. Any...