Modified Pony

Modified Pony: Any flat top pistons (except 1600 or 1800 Toyota may run stock dome piston .267” max). any camshaft.  Stock factory production Aluminum Heads for manufacturer of motor ok.  Aftermarket Aluminum Head on any manufacturer add 200lb (example Eslinger head on Ford add 200lb). 500cfm Holley carburetor maximum, NO porting or polishing of carburetor, checked with Go-No Go gauges top to bottom, headers allowed, no rotary engines, steel wheels, up to a 10" tire width, weight 1 lb per c.c. with driver.  8" rear spoiler, stock chassis, stock suspension, jack bolts OK, aluminum bodies OK. Any Tire.