Ok - lets look at this logically.....I'm not a master mechanic....but on the initial start..(cold) - I pull the choke & turn the key....the truck starts, after an initial warm up I gradually push in the choke....every thing is fine runs like it should.....nice idle....with a very slight tap to the accelerator the bogging starts, let up to an idle, and feather the pedal to obtain a higher RPM to take off in first gear..... but not smooth...its rough, just overall miserable....Vacuum was checked & ruled out, as with timing, & vac advance....Just brainstorming at this point....and will resume in the spring when I can work on it...The previous owner installed an HEI distributor, from previous posts it appears that the installation was correct with 12 volts going directly into the circuit....On another note Mike's Carburetor has a new replacement "B" for earlier models 6 cylinders - I believe for 216 & 235. Kinda wondering what that's all about.....Just having a tough time considering any other places on the engine where the problem could be.....
