[Dark_5.0]

Dont get too excited about your numbers equaling low 12's.

I pull a 1.60 60ft and go 108mph and run mid 12's.

I had my #4 injector unplugged once and didnt know it and I still ran a 13.50 @99mph @3000ft. This was my first time out with the car I sure was glad when I figured it out and ran a 12.60 @108mph the next time out.

I bet its a timing issue cause if you are going lean enough to lose 6mph than your plugs should tell the story. The electrodes should be bright white if that is the case.