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My calipers are electric and the battery is dead so I didn’t measure the pushrod but compared it with two other used ones. Same length and no abnormal wear. Also it runs good. When I pulled the pump back off I pump it by hand and it’s really loud on suction side. Not thinking it’s bad really...

Ok confirm it’s the pump. Pulled it back off. Start. No noise. Compared to old. Not much different. Old pump was only a year or so old. I’d buy an expensive carter/holley/edelbrock but not sure they would be better. Then need a regulator for certain ones. This pump is carter m6935. If it’s...

Also I checked the pushrod while it was apart. All good there. My guess is cheap China part. Ugh

Oh by the way it runs great. Just strange noise

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...

A few months back I just went down to autozone and picked up a 600 Holley. It’s what was in stock. Works great on a stock engine that’s not turning past 5000 rpm. I put it on a stock low compression 440 by the way.

I remember seeing super shops on Don Garlits swamp rat.

I was wondering if they were Holley quality or more Edelbrock type. I think I’ll just stick to what works. 4150 and such.

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 know if you use fuel line for oil it gets soft and mushy. I would try hose designed for oil. I bet it will fix your problem. Some hoses are multi purpose as well. But fuel hose doesn’t like oil.

I’ll add two pennies. I set my mixture screws with a tach. Not the dash tach. It’s called a smart tach and reads rpms by 1. As in it will show differences down to 1 rpm. Now the engine isn’t steady enough for that but within 10 or 15 rpms. I adjust the screws out until it drops. Back in until it...

Thank you

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...