I put a new distributor in my V8 and now it is burning up (literally) some of the plugs. I am not sure of the right firing order, as I have been told several different things. The motor says it is a 392 according to the sticcker on the valvecover drivers side. It came out of a 44 pass. 1980 school bus and has the "allison" type auto tranny behind it. Any help? or where to look for help?