I little background first, I bought this truck from a guy, whom didn't known much about it. So I have been shooting in the dark for a couple of weeks now.
Information to known, I live at 5000 feet. I have tested this engine from top to bottom, on the basic stuff. Vacuum lines, steading reading on the gage at 15 pounds. It idles pretty good, but if you put the throttle down, it hasitates, or will die out. If you put in gear, it dies out. Idle set at 950 RPM's.
The timing is set at the best vacuum and hearing idle, 30 degree's, from the timing light. It has an accel breakerless points thing on it, with the correct 8140 coil.
I am out the point of reaching out, I messed with the holly double pump carb, don't known the model, it reads 3532 on the throttle body? I turn in the mix screws all the way, and turn out, and it doesn't react??