I have a 390fe that's completely stock minus an HEI distributor and a 4 barrel intake and holley carb. With my basic 600cfm carburetor, a problem arose where the acceleration from idling around 700 rpm to about 1500 rpm was real fluttery and loud, and really weak. After 1500 rpm, it would...

Okay, I didn’t know if there was a chat or anything for this but I’ve got a SBC 400 with a Holley truck avenger 770, full msd ignition, mechanical fuel pump, And when I rev it in neutral passed half throttle it cuts out and if I hold it there long enough the engine dies, and under load it does...

Hello there guys. last week I found my head gasket had blown out on my SBF 302. So I tore it down replaced the head gaskets, intake manifold gasket, and changed all of the fluids. I fired it up and it runs only if I stay on the throttle. as soon as you let go of the throttle it dies. I did...

I have a 1976 Chevy Monza with a 1975 Chevy C20 350 small block engine swap in it. I got it from a family friend as a present. The engine (I think) is rated at 165 hp and 275 ft lbs stock. It has a 4-barrel Holley Carburetor, Weiand Intake Manifold and Hooker Headers. I was just curious ABOUT...

First Time User Here But plenty of experience with Chevy, GMC... found a inexpensive Holley 650 Duel line, part number on carb[List 4777 0805]...What does this fit? I have a 1986 GMC 3500 (1 Ton) with a 350 (small block) needs a carb. Can I use an adapter to fit a 4777 to the manifold?

The Holley carb on my 85 Ford f250 is leaking fuel onto the manifold and the truck backfires when i accelerate heavily and let off the gas fast what should i do?