340 adapter to Ford Toploader?

I dont know about where your at but here the a-833 is the cheapest trans to get a hold of when compared to a super t10,m 21/22 or a toploader.The price is cuite a bit less and a good friend of mine has ran a barracuda to 9.40s with nothing more than a regular old 23 spline a-833.I know it can be done,I was going to convert my pontiac to a toploader-g.m. manuals are kind of like their rearends in my mind,poorly enginered for use behind any real power!.