360 stroker questions

How much power/weight will a stock 833 take? It all depends on the clutch that is going to be used. Add some slip to the clutch and it will last a lot longer than a clutch like a CenterForce II, that will find every weak point from the clutch back.
A little clutch slip will improve your 60' times, smooth out your gear changes, net you quicker ET's from not letting the engine drop below(or bog the engine down below) its power curve.