Some KA's will take anything you can dish it and brush it off, and others will blow for seemingly no reason. But Carters right, Unless you pay alot for a newer engine(in which case youll need everything to go from a single cam to a dual including a whole new wiring harness,ecu, etc.)most motors you get will have a problem or two. But if you must get it...What kind of work is he going to do to it, whats already done, give some info on the car.