Fuel Starvation

Guest

A few months ago I replaced my autolite carb with a brand new Holley 670 Avenger. After installation, I noticed that during hard runs the engine would stumble and stutter for about 30 sec then return to normal once the fuel quantity (pressure) would return to normal as the fuel pump caught up with the increased demand. I attributed this to a bad (electric) fuel pump which is fairly old.

Yesterday I replaced the fuel pump with one of Holley's high flow units (160gpm) and the problem seems to have gotten worse. It didn't call for a pressure regulator so I didn't install one.

I'm pretty sure the carb is still starving for fuel during these spirited runs and it's not an ignition problem...therefore what else am I missing? I'm not carb savvy at all..but now I think the problem is with the carb. Do I need to adjust something in the carb?

Thanks for the help!

2/23/0210:42 AM

Original Post

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