Hello
First post from a new member here, and the first thing I should say is that this site is tremendous!
I recently purchased a restored and slightly rodded 71 4WD stepside, and I could not be happier with the buy. However; driveability is not quite where I want it. There seems to be some carb issues, and I'd like to find a simple fix. Carb replacement is an option, as long as I know in advance that I'd be buying a more user friendly carb.
The problem is rough idle, a slight hesitation during idle transition to driving, and dieseling upon shutdown.
I've checked timing (6BTDC), checked for vacuum leaks, checked all ignition... and then set idle mixture with a vacuum gauge according to the manufacturer's (Holley) instructions, and I'm beginning to wonder if this particular carb is just goofy.
The engine is a new 350 (someone said it's a crate, but it doesn't have aluminum heads,) GM electronic ignition, Holley 600/vacuum secondary. It also has a water jacketed spacer between the carb and manifold - I've never seen that before.
Appreciate any and all suggestions.
Paul Domeier
Green71
