I have a 89 shadow with a 2.5 and some small work done to it. Like a big turbo and the supporting mods to handle it. But when I put the 65lb injectors in the car I got from Cindy at fwdp the car won't rev past 4K. With the stock injectors I can rev it all the way to 7k I've bought 3 different sets of injectors and the car still does it. with the stock injectors on 18psi the car is at 9.3 air to fuel which is to lean for me but now the car won't rev and I can't figure out why because everything is the same just different injectors.