Leaf spring theory question

Agreed , but if u never get enough traction to start with , with the battery already in the trunk and 14-16'' tires, (bad track , and tires back in the day not what they are now)

I have traction for DAYS with 275’s, caltracs and 3.23 suregrip. Beer math says 340ish crank hp, 260ish rear wheels. It hooks and goes with barely a chirp just mashing the gas in D. 6 sec 0-60 without launching.