Shes alive an shes stayin alive!!

six pack said
I still think you are after a timing issue, re-check your points as well.
Dot to dot is firing on #6 cyl. dot on top to dot on top is firing on #1.
You could be kicking back through the carb because dist is 180º out or you have a plug wire misrouted. I would not tear the engine down again based on how you said you aligned the timing chain.

we hav it all on the #1 TDC the dist. is on the #1 plug and the cap is facing the #2 piston but the #1 plug is first to fire all the wires are in there right spot i lost count how many times we checked that out and we set the gear drive dot to dot and we had the motor at TDC when we instaled it!