My guess is your timing is way retarded. Retarded timing will kill both your power and your MPG. Did you jumper A-B when you set it to 10 deg BTDC?
Even if you did, I'd start bumping the timing advancing it until it knocks and then back it off just a bit. Turning the dist counter clockwise advances it.
Oh yeah - I make the cable that allows you to scan/log it. http://reddevilriver.com/aldl.html
The cable works with TunerPro RT. TunerPro RT can be downloaded for free and runs 100% after a 10 second nag screen. You can purchase a license to avoid the nag screen but that is never needed.
You will need the 12 pin version of the cable. $55.00 shipped to US locations.
The scanning software can tell you how much advance the ECM is adding to the static setting of your distributor but it can not tell you how much static advance your distributor is set at.
Ryan Gick - Sinister Performance - can burn you a chip for your cam and pistons. http://gmtuners.com
- his email email@example.com
[This message has been edited by phonedawgz (edited 08-09-2013).]