Bought new from Pro Power. Have owned since new. Freshened every 1200 laps. Motor has approximately 2440 on it since new. First freshen was by Pro Power. Second freshen was by Tesar Engineering. Great qualifying and racing motor. Have never had any issues with it. Is set up for the dual ignition- Has crank trigger or can run off distributor. Only reason for selling is going modified racing next year. Would consider trading for a partial trade 604 IMCA SEALED Engine race ready or a race ready IMCA Mod w/ 604 IMCA Sealed engine in it.