They sometimes say right on them "engine side". Plus as I recall its pretty obvious how it bolts on when you hold it up. It's been awhile since I played with a flex plate (I like manuals) but I think if you mock it up it will be obvious.
Yes...my bad. I re-read my post and I meant to say the flexplate installed on my car was for a 400 small block....not a turbo 400....sorry. Either way, my point was to make sure he wasn't putting a weighted flexplate on a 350 small block and run into the same problem I had. ThanksI am with Carl on this, the flex plate is balanced for the engine. 400 sb and all Gen I BB except the 396 and 427 had a weight on the flexplate.