I have a MSD pro billit and a 6al box. The other day I had to remove my dist. to fix a stripped out T. housing bolt. I carefully marked my dist. location and the rotor location as well. I carefully put everything back together, just like it was. So I started her up and noticed the engine sounded quieter than normal. I set the initial at 16, hopped in and went for a test drive. It had no power and would backfire if I gave it too much gas. So I figured the timing to be all wrong somehow and pulled the #1 plug, had my wife turn the engine over until I felt compression. I then hand turned the engine over to 0 deg.( it landed on 8) and made sure the rotor pointed to #1 which it was. So, I started the engine again and no improvement. I noticed that all the headers were hot except for #4 and #8. I then pulled one at a time the #4 and #8 plug wires, put in an old plug, grounded it and started the engine. Both 4 and 8 were sparking, but it seems these two cylinders are not fireing. I've gone through this procedure twice now, what am I missing??
Any ideas?
Thanks,
Tim