I only have a couple passes on the new setup, but it pulled a 1.71 60 foot no problem, launched with maybe 1 psi boost, not much if at all then hit 17 psi in 1st then it fell to 10psi the rest of the run, still went 11.6 @ 112 even running black smoke rich on 10 psi, "should" go 9's once I get the Weldon 2015 installed and boost set right, etc... 17x8 wheel with 275 50 17 M&H Drag Radial.