hard to say Rusty, yes, there is a chance the timing could be off, but if that were the case, depending on how far off it was, it either wouldnt run, or by running it that way you could cause engine damage. I would have it back at their shop A.S.A.P. for them to give it look over to see if they missed something or put it together wrong. I would even consider having them come to pick it up just to remove any chance of causing damage by driving it back to them. Who knows, maybe you'll get lucky and they either hooked something up wrong, or maybe bumped the distributor off some how.