Im not sure of power output buts its a high comp engine had 130 thou of head and 10 thou of deck the skim on the head comes into the thread on the spark plugs i have to run stubby plugs as normal ones hit the pistons. The vac advance has been locked and runs 29 degrees advance @ 3200 rpms it does go well very punchy i dont think the GTS2 cam would work well on the road as it likes to be between 2500 rpms and 7300 it likes to rev.
As for having a go in a stockcar Stuart is taking my stockcar out next sunday at swaffham he just got to pop round early next week to see if he fits in it if he dont we then have time to alter it to get him in im sure it will be an experiance for him