Stock '49 216
Rochester B carb.
Daily driver
My old truck had been starting and running poorly and developed a dead spot off idle. I wasn't surprised because I hadn't done a tune up in over a year.
The other day I changed the points, cap, rotor, and plugs. She now starts up and runs great, but I still have the flat spot. It's bad enough that if I crack the throttle open quick and hold it it dies.
Hold on, this is where I get confused.
If I'm driving down the road at any speed and I quickly change the position of the accelerator pedal (about 1/4") in either direction, open or closed, I get the same flat spot loss of power. In my mind that eliminates the accelerator pump.
I've verified that the distributor is rotating when I open the throttle.
Is this electrical? Carb? Timing?