Structural parts for automobiles, namely cylinder heads, intake manifolds, rocker covers, water manifolds, engine mounting brackets, cam shafts, valve train, engine pistons, engine gaskets, cylinder blocks, engine turbo chargers and super chargers, water pumps; automotive exhaust systems comprising mufflers, exhaust headers, header collectors, header side pipes, catalytic converters, exhaust pipes, exhaust crossovers and exhaust tips; electronic ignition systems for vehicles comprising inductive discharge ignition controls, capacitive discharge ignition controls, programmable digital ignition controls, digital ignition programmers, digital programmable launch controls, camshaft synchronizing pickups, sparkplug wire synchronizers, digital programmable rev limiter and timing controllers, ignition coils, ignition distributors, ignition magnetos, spark plugs, and spark plug wires; electronic engine control systems comprising camshafts, camshaft gear drives, camshaft belt drives, camshaft chain drives, camshaft shaft and bevel gear drives, camshaft valve lifters, camshaft push rods, chain tensioners, belt tensioners, shaft drive tensioners, rocker arm and shaft assemblies, namely, rocker arms, rocker arm shafts, roller rocker arms, and rotocaps; and fuel injection systems comprising high pressure fuel pumps and regulators, fuel lines and pipes, fuel filters, fuel accumulators, fuel rails, fuel injection nozzles, mechanical fuel injection controls, electronic fuel injection control units and computers, fuel injection manifolds, fuel injection manifold meters, fuel injection throttle body, fuel injection sensors, fuel injection manifold air cleaners, fuel pumps and regulators for carburetors, carburetors, intake manifold for carburetor, carburetor spacers, and carburetor air cleaners