Lost My 65

[LostMy65]

I've been spending a lot of time in the 'Engine & Drivetrain" section of the forums. I don't know much about automatic transmissions. I bought a summit th350 from a local guy. Included was the flexplate and torque converter. As I started mocking things up, I noticed the flexplate he included wasn't going to work. Fortunately I still had the larger flexplate left over from the 79 donor I had from my 66 service truck build.

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From my research in these forums I learned depending on which flexplate you needed, determined what starter you needed. Fortunately I had the correct starter also.
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Next I started reading up on torque converters. I first checked to see if the torque converter he including would bolt up to my larger (14") flexplate. It did.
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So now my only concern/question is what stall torque converter do I have.
I'm going to take my chances and see how it goes.
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I've also been reading... related to the stall of the torque converter is my engine/cam. My engine has quite a lope to it, and it requires premium octane.