mine did 4.3 on 18 s with stage 3 and hybrid, 6500 launch with std gearbox and paddle clutch
Think thats where its gonna be roughly!
I would say yes,Mark Shead did a 3.89 on his stage 4 which was running between 330-350 bhp,properly timed for an old performance car mag,many a year ago
Think he was on standard wheels and the 18's make a big difference!!