I run the MT 29.50x11.50 in my '68 Chevelle. 300 horses at the rear wheels put's me through in 12.4-12.5 @ 108. Weight wise I'm about 500 lbs. lighter but you're probably a 100 horse more at the rear wheels. My 125 NOS shot puts close to 100 hp to the wheels and gets me through at 11.5-.6. I'd guess that's where you'll end up.