all they did was move the cold air sensor to the center of the box, this was there cure for adding fuel. Some how they figure a powershot solenoid with no jet and split 4 ways is only a 75 shot which still seems like alot to me. They have 4 nozzels, 1 in each throttle body boot. And NO, they didnt do anything for the timing issues. I guess they were running some 120 octane oxygenated fuel.