How much power can I lose with my timing off?

I just popped my distributer back in when i was having some problems and now the car runs, idles fine but either my distributer is still over a little or something but my timing is like at 2. When i shoot the timing gun at it i c my original marks like an inch above it. Im going to the track tonite and i was wondering how much power i could lose.
 
you'd be surprised.. anywhere from 5-10 horses.. thats one thing 5.0's like is advanced timing- stock setups especially. had mine at -15, but it developed a bucking problem around 1300. knocked it back down to base for my nitrous an it runs fine now.. if your runin a power adder, tho your off boost performance suffers unless you have a chip that can switch between N/A an p/a tunes..
 
BlueOvalStangGT said:
distributer is still over a little or something but my timing is like at 2. When i shoot the timing gun at it i c my original marks like an inch above it.

sound like your way retarded on the timing.....i would think there some power being lost for sure....you can see the 0 about an 1" above the timing tab?? Thing seems to run ok??? i would think it would be a mutt, being that retarded...hum..???