12 Second N/A Slant 6?
why don't you try to cut down the weight even more? Are you running a full interior, original gas tank, and all original sheetmetal?
I might set it up where I could pull the street seats & bolt in a racing bucket, but it will have door panels, stereo, headliner, etc.
We strip out all but the drivers seat in the LXs right at the track. The front passenger (6-way power/heated) weoghs 70 & taking out the rear saves maybe5-10#.
Some guys set up a drivers bucket, bolt it into the passenger side @ home.
With the rear seat out, they remove the comfortable driver's throne (another 70#) *& swap in the racing bucket. That bdrops over 100#.
W/O pullingb the door panels the cars weigh in about 4100-4500 depending on the bells & whistles.
One guy has an '09 Chalenger W/a Gen III aluminum block 426. The aluminum blocks can be bored about 4.86 while the 6.1/6.4 blocks are done @ 4.08". He's turning a 3.27 axle ratio in an b.8 Ford IRS diff.
I had an 8.8 W/3.23s in mine when I made those passes in the clips. Gives a 4.55:1 FDR in 3rd gear.
He runs full interior, pulls 10.80s W/1.40 60" times. He typically drives from E Ohio to SE New Jersey to compete in the LX Forums series.
The car pulls the wheels up on the launch.
4300-4500# car running 1.41 60'.
