Too cut or not to cut?
FIRST thing is lose the Firesone bias tires! If you want hook, get some sticky drag radials for the track, or your "spiritred" driving outings.
Tying the frames will make you think it's a brand new car in all phases of driving. You don't have to cut the floor either, add some that are below the floor.
In the end, it's YOUR car...do want YOU want.
But if it were mine and 1 of 130, I wouldn't tub it. There are PLENTLY of ways to make it hook. Ask the Stock Eliminator and FAST guys...