IDK wut all these people are saying about y buy a DSM, there are people on Long Island and New York City (where i am from) that are running stock motors w/ turbo and built autop trannys running consostant 11’s so with a stock motor and just turbo/mani upgrade wuts wrong with wanting to go fast?? but anyway…trannys are huge, make sure the syncros are good, feel all the gears out at different rpms. watch for the tranny mounts also, i have heard horror stories, Other then that any leaks as usual, and if the cams or head has been worked on, get the timing checked out to, cause al ot of times kid don’t know wut they are doing in their “backyard” garage and yeah! Best of luck DSM’s, and Evo’s 
Good places of reference:
evolutionm.net
dsmtuners.com
etc.
Good Luck!