OK Im new to this, My 350 has an HEI is there a dwell to adjust?
I dont have a vacuum advance hose to disconnect-Im told I dont need one?
also when i shut the car off it keeps wanting to run and then sputters to a stop-This is the dist right?
1. With HEI, there are no points, so there's no dwell to set.
2. Your distributor should have a vacuum advance unit on it - if not, it's been replaced by someone who doesn't understand ignition systems.
3. What you're seeing is "dieseling" - your throttle blades are too far open at idle, so it's still getting air and fuel when you shut it off. Close down the idle speed screw so the idle mixture screws control your idle, and adjust them properly with a vacuum gauge.