Hey guys, I am a lurker, but following along.
Don't think too hard. Remember back when there "wasn't" a good knock sensing device while tuning. (race cars, beaters etc.) You used the dyno to tell you what was going on.
Unclemeaty;
That little lesson you learned about loosing power is worth it's weight in gold.
A quick test, take away two degrees, make a pull. Do this GLOBALLY over the entire map to make it quick. Then add them back and make a pull. Don't forget you have two timing tables that need to be cohesive. Not the same, but cohesive.
That test will give you clues as to where you need timing and where you don't. If you don't loose power, pull 2 more degrees and do another pull.
I don't EVER tune timing on the street. IMO. But we have two dyno's so I can.
UPrev is the way to go.
Wayne
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