I agree with this and am in the process of doing my own crossover conversion. I would love to have Robs' but I am short on funds so I must take the DIY route when I can. But I digress, I had already gone the bigger injector route, using a company called Five-O Motor Sports. These have worked very well for me. I have just about every available mod plus a few of my own and if I must admit, the car is QUICK but I still average 22.7 mpG. All is good! I'll have to see what the crossover mod does.