Im running an old ISKY SB chevy profile. 212/212, .527", 114*. The lobe started out as a 209* @.050'', but grew to 212 on the larger LS1 core.The new lobes they just came out with are alot better.
I run in 4wd with 28'' tall ET streets on all 4 corners, traction was an issue I think mostly because both times I have ran the ET streets, it was opening day, on a new track surface.



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