on the advanced timing topic, you should be able to get a few more (as in 3-4, or more) degrees out of it, or maybe just not retard as much under boost as you have been. Could also lean the mixture out while spraying, not reccomended if you can't change fuel settings on the fly though (in case your WI system shoots craps). I pulled fuel and added timing and boost on mine, but I prolly have easier to change settings (I just push 1 button to go back to a "before WI" fuel/timing map). Have to play it safe in case of an emercency. Just a couple of options -Chuck