If it is ALL the tubes glowing it is TIMING period. You might wanna check and make ABSOLUTELY sure its not 180 degrees out as well. TDC on COMPRESSION stroke. Also that the distributor cap is truly on number one at TDC. If its ALL the headers its timing.

"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"