Okay it a 350 tpi GTA with 77XXX on it, just did a complete tune up plugs, wires, cap and fuel filter. My problem is I still have a off idle hesitiation in gear. If I let it idle in the driveway and just nudge the gas it will sound like its loading up and start to smoke when the gas is pushed. I have check for blowby and hit had none. Also when it is started cold will start fine run for about 10 seconds and die but when restarted it is fine with a perfect idle. Another weird thing is when it gets to operation temp (about 190) it is fine with no problems (purrs like a kitten)

HELP!!!!!!!!

 

I am having kinda similar issues with my 87WS6. I have no idea what to do about it. Mine idles perfectly while in park. In gear it sometimes idles rough. Trys to stall (but never does) The rpm guage fluctuates quite a bit for a little while and then settles down. So I will let you know if I have any ideas about it.

 

maybe a bad torque convertor?