Firemann & Mike,
thanks for the info so far, I do have the Dyna instructions and it states to set the first two settings at 2 which I did, I had an HQ ing, before which was programed for this motor with 93 gas, It had low power and after a long ride it would over head and ping like crazy and started to smoke a bit, so I found a gas station with 100 OCT unleaded, and the motor liked it so then I found a station next to my house with 110 leaded??? race gas and the motor came alive and have been running it for two years now, last summer we had the heads taken off for a vale job and there was no damage to the pistons so we put in a new set of rings and bolted it back togeather tomorrow I'm going to ask the owner one more time if his 110 gas is leaded or unleaded I have seen brand new corvetts put this gas in but also seen old 454's chevelle's stop and also fill up, I'll wait for your PM mike thanks alot I hope I can get the same performance with the 93 oct, [smiley=xyxthumbs.gif]