Fix me up a 350 tbi out of a 89 to put on this 94 with a blown 6.5. Nothing fancy aftermarket intake matched injectors headers. Friend of mine stops by for a adult beverage and has a LS in the back of his truck with trans tcase and all wiring and modules picked it all up for 1000 bucks. Was told it ran but nothing else. Going to put in my 16yr olds 94 instead of 350 tbi. What should I check first??? Cam and lifters?? Thoughts, ideas and comments appreciated. Thank you