You are right Sal - even if you did find a FI solution for our vehicles, you then have to worry about all the other components that might be effected. I could have gone with a stage 2 or stage 3 supercharger for my other vehicle at a slightly lower $/hp value but then I would have needed to swap the clutch and rear diff to handle that much of an increase. My '07 stock is something like 248 hp - and I would be happy with an increase up to 330 hp - but you either take very small steps for a lot of $/hp or you bite the bullet and pay gobs of cash for a huge increase. I would estimate that a properly tuned FI system would get my 4.7L up to near 400 hp if not more. For our vehicles I would give up top end or 0-60 times for gobs more torque. Can't get one without the other tho!