[Ryck Campbell]

Bruno,

Actually there is no such thing as a "natural" class in NHRA SS/GT. Using the 12.98 weight break, the car's shipping weight is 2726. From there you can subtract a maximum of 250 pounds or add a maximum of 250 pounds to calculate what classes the car can fall in. With the maximum removal of 250 pounds the car won't make the top of GT/F(A) with the 230 hp engine but the car could:

run heavy in F @ 2670
G @ 2700
H @ 2815
I @ 2930
J @ 3045

using the 220 HP engine in would be:
heavy in G @ 2670
H @ 2700
I @ 2810
J @ 2920
K @ 3030
L @ 3140

This is using the data available as of today, 12/2/2010. Hope this clears things up a little.