3'' single plane spacer?

iv just got a 2'' single hole phelonic spacer, which im going to add to the 1'' i have
(so 3''total) on a M1 hi rise air gap manifold

im after a bit more torque mid way (1/8) or there abouts
running 28x9 slicks
750hp dp
and 11.8 @ 112mph


my guessing it will bog off the line, anyone tried this?
:)