I'm down in the bay area helping my buddy out with his 86 blazer. he just droped in a GM Goodwrench crate motor and we can't get it timed. when we put it to TDC and set it at 8 degrees advanced it runs like crap. it's not 180 out, we/ve checked it twice. it will run better if we time it "by ear" but then the timing mark is no where to be seen. we even went to the parts store to make sure we had the right ballencer. also, when we get it running ok it runs hot. i think they might have installed the timing gear wrong when it was assembled and didn't line up the 2 timing markes correctlly. we might drop the pan and timing cover tomorrow and see. other then that, i'm stumped. what do you guys think???