[DAVID GAGNARD]

According to MSD, it will fire the plug three times at low rpms, according to my 20+ year old Sears timing light, that is exactly correct....My timing at idle is 10 degrees and on my timing light it will show 30 degrees as it counts the times the plug is firing, somewhere bewteen 2,000 and 2,500 rpms, the MSD on both my cars will begin firing the plugs only once as noted by the timing light....

My total timing is 32 degrees and that's what I read at 2,500rpms.....

As for the original question, a chasis dyno session will give you more results for your money than anything at your stage right now....

David