it was never 510 at the wheels.i ran it to my local rolling road place once i had it finished and he did a few runs and said it was if i remember right 510-520 at the fly.
hell of a fun drive and a very strong engine.seem to remember stu commenting on how strong it went when he and kenny mapped it.
annoying thing with the car is if he was more honest with his description and history of the car(like i was when i sold it) then he would probably stand a better chance of selling it and even if he got 14k,it would be a tidy profit(unless he has spent a fortune on it)