So I'm curious...according to responses on my last post and Diablo themselves, the 'factory hp' tune in the diablo predator will not make changes to the rear-end gear ratio, so you have to use the 'performance tune', no problem because we all like exra power My question is, about the timing adjustment. I want to run the 100hp shot on my NX kit with some timing pulled, but I don't want my speedo to be off from the 3.55s and the 'factory hp' tune. After doing some searching of previous threads, people are using a stock tune to spray and some even pull a couple degrees from stock, how far off is the 'performance' tune from diablo compared to the factory tune as far as timing goes. I'm sure I can't be the only one with this tuner and this issue. Thanks in advance for an information.