For those who have made this change what were the largest things you had to change? How much fuel added at wot? less or more at cruise? I am in a bind for time right now to go out and datalog and make changes over and over so looking for ballpark figures to get me going. I jsut got the wideband afr stuff so that helps a ton but people who have made the same swap input will help just as much. I know this much it lost 4 to 5 mph in the quarter mile and is really lean at wot after giving it a 5% change right of the bat to see how it ran. Felt good compared to the old set up untill I went to the track and saw the loss. 117 to 113. Also was pinging on 32 degrees of timing and had to put it at 27. Guess I should have figured it was lean when I had to do that. All that was last weekend and got the wideband on yesterday to see how ugly it was. 17.1 at wot ugh.... I am at 90 % in the ve tables so need to change it in the pe to start as it started at 15.1 and went to 17.1 by 6400 rpms. I have all the stuff to get it right now just not the time as hollidays and traffic in the area is limiting me to being able to run around logging and doing a bunch of chips and a better reference point would cut the time down for sure.