Umm how? My 08 ISF could easily gap a new scatpack nad now my FBO 12 ISF gaps FBO scat packs even more. Does the same to Mustang’s unless they’re the A10 and even then it’s a closer than you’d think race from a roll. At VIR the heavier ISF on summers matched exactly the time of the E92 M3 coupe (which had semi…