I have a 97 checkmate 242 with a 454 7.4 liter just did the 100 hour tune up, plugs, plug wires, distributor cap, coil, oil change, lower unit transmission change, new holley 750 cfm double pumper. 650 hours on boat, new ram units for tilt and trim, trim tabs work great, interior perfect, boat in great condition, looking for $ 17, 500 for the boat. If you have any questions call me at (407) 810-9081 my name is Mark.