Bottle Rocket into the 8's in the 1/8 with slipping clutch

That’s a 12.669 SLR. I’m at 14.0904 and that’s not enough to move the car very well.

The less power or more weight or both needs more gear to make the car move.

I’d like to be at 15 for my SLR, but that may not be possible.

What transmission do you have? If it is a regular 4 speed 2.66 1st, and you go to the OD 4 speed with 3.09 1st, that will take you from 14.0904 to a 16.3682 SLR.