Six Cylinder bars here.

".810 MP drag bars in my small block A-body, 3100lbs., that sees street time, and has 600 hp on tap, and then add the nitrous. They are not strong enough, and have too much stored energy, especially for a ladder bar car at this power level"

Moparbilly I have been using MP drag bars purchased from Mancini racing for the past 12 years .BB B Body 3550 lbs. mid 9 sec car with ladder bars.
Maybe I am just lucky but have had No problem holding cars front up to whatever height you adjust them to! Weight transfer seems good.
How would I know if they have too much stored energy?
Mike

My cuda still has its factory installed 340 torsion bars.

36" ladder bar, 130 lb springs, Koni rear/Afco front, doubles.
Doug