how much power do you loose by removing 4 degrees of timing? I had it taken out for 100 shot car is a 6 speed

 

Honestly it's hard to say unless your on the dyno. If your NA tune was spot on making max power like it was before pulling the 4 degrees maybe 10 or so rwhp. If your tune was over timed to start with probably very little loss. If you don't have access to a dyno but have previous NA runs at the track you can judge with your mph differences to an extent.