Just my opinion, I don't think it will do you much good right now unless you have a custom chip burned or have a lot of mod’s done to your car like a fuel pressure regulator and cam or heads or other mod’s.
It will tell you your best shift point and where the best rpm range to launch at is.
You might be able to squeeze a few more hp from the timing but it won't be worth the cost. You would be better off spending your money on other performance parts.
Hope this helps.
Hey you copied my name!!!
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James Cox
nochevy@hotmail.com
1991 Mustang LX
Best 1/8 time on motor 7.686 @90.20mph