Stall on a Stock 904 Converter?

All of the above is sound advice,that being said, here is my 1st hand experience FWIW. I purchased a '72 318 swinger from a fellow tech school student in late '83, for the purpose
of swapping my '69 dart custom to said SB. That engine was bone stock untouched except for a new t-chain and a crane blazerII cam, which was not a small cam by any stretch, and
that thing would smoke the sh*t out of any stock size tires. The 7.25 in my car lasted about 3 mos., with about 40 nice burnouts under its belt before it spit the spider gears, any V-8
with any kind of traction will eventually break that. Even w/posi which is stronger w/twice the spiders, the next weakness just takes their place. One member had modded his for
more strength till he simply began twisting the pinion end right off. On the other hand, I tried to break an 8.25 on 275/60 street tires(not cheater slick type),w/a 4 spd. in an FMJ
bodied car before swapping an 8.75 rear in. I mean 5500 dump-powershift 2nd as soon as it stopped spinning-slam on the brakes& repeat over and over---and over.... w/a heavy
passenger, I gave up and left before someone would call the popo,......over 30 dump/powershift cycles w/a 383 in a car at more or less 3800#---one will serve your little SB a-body
just fine.