Unless you can do all the work yourself, this kind of head swap is fairly expensive and may not be very reliable when compared to the idea of you taking the vtec head and slapping it onto the EX block. Unfortunately, this means some of your basic mods like the header and exhaust won't/may not be able to be reused which = money lost.

Another thing I'd like to point out. Just because the F22 is low compression doesn't make it a great candidate for FI. The real reason is because the cylinders are stronger than in an H22 making it relatively easier to boost. Even then you should think about resleeving.

The low CR of the F22 really is a moot point bcause if you're going to spend the money for FI (done right) you should be getting forged pistons, new rods and improved valvetrain anyway = pick your own CR.

The advantage of getting the new motor is that you can build it up and mod it without leaving the car in the shop for an inordinate amount of time.

noel