I was just on Tom Langdon site. It appears that he has a split dual exhaust for the Vortec 4200. For someone swapping into a vintage ride, kind of cool.

Someone needs to work on that ugly intake now.

Tom's headers will not work with the stock motor mount. I know from experience. I have a set if anybody needs them.

I saw the proximity to the motor mount. It looks like a T3 flange could be welded in the same fashion....