I have asked these questions to a bunch of people and either no one knows the answer or no one gives the same answer.

1. I own a 2004 cobra, will 10.5 rims fit on the rears without having to do any modifications? If the answer is yes, can I put "true" 315's on without having to do any modifications? What I mean by "true" is that I know that Nitto 315's are smaller then any of the other manufacters 315's. So would I be able to fit a pair of BFG 315's on the rears without modifying the wheelwells, supspension, ect.

2. I have exhaust with catback, CCI, upper and lower pulleys, SCT chip, stieg. ported eaton, upgraded throttle body and spark plugs, and am running 101 octane fuel (torco). The place that did the work and tune for me have a mustang dyno and dyno'ed by car at 420rwhp. They told me that mustang dyno's typically rate the rwhp at 20-25% lower than dyno-jet dyno's do. They told me on a dyno-jet I would be at around 525rwhp. Is this true that mustang dyno's are 20-25% lower??

3. I read the posts on the question about Whipple vrs Kenne Bell. Now that the new models are out does anyone have any different opinions? Which one is more reliable and less likely to break or have mechanical problems. It seems like either one will pretty much give you the same rwhp. Any info about this subject would be greatly appreciated. I would like to know anything about either supercharger. Thank you to all that took the time to read the novel I wrote above, my appologies for the length.