Just the one, 73 Duster. Originally a six banger, now a 408, 727, 3000 stall, 8 3/4 3:55. Manual Steering and Manual front disc brakes. Speedhut gauges. Reinforced K and LCA's, 1.5x3" subframe connectors. 2 1/2" Exhaust Flowmaster 40's. 11 - 12 mpg "under the right conditions"