[Hray]

A short story for you, and maybe a solution. I bought this 55 chev a few ago, had a elect ingnition from newer car. i would crank and crank the car and it would not start, but i did notice that when I let off the start mode the motor would seem to catch. so I determined on the chevy ignition switch when the key is turned to the start mode that the contact going to the ignition switch is lost and that the extra wire that would bypass the resister is supposed to then carry more voltage to the distributor. When checking the thing with the key on I got plent of voltage to the distributor, but I lost all voltage when turned the key on over to the start mode.

This sounds like a similar problem, on the chevy there was enough momentum to get it to fire when you returned the key to run position. I am going to guess your motor is too tight and that the instant you let off the key from start the motor basically stops.

This is my only guess.

Good luck and waiting for the real answer. Ray