SFC??????????????? 'ssss
m6 with 4.11 gear
two step set at 5800
spec 3
aluminum flywheel
400rwhp
mt/et street (not the new radials)
The SFC will help to keep your frame from distorting, but other than that they are dead weght.
I wouldn't expect to see a gain from those two. In fact, I might expect it to slow down a tiny bit due to the weight of the SFC's.

