chevy silverado 4.3l vortec (TDC) distributor install & where 2 point the rotor

how to find tdc on chevy silverado 4.3l engine, how to install a distributor on a chevy silverado 1500 4.3l, chevy silverado 1500 4.3l top dead center, how to use top dead center whistle to find tdc chevy silverado 4.3l engine, chevy silverado 1500 distributor install, chevy silverado 1500 4.3l find top dead center, how to remove distributor on a chevy silverado 1500 4.3l engine, find tdc chevy silverado 1500 4.3l vortec engine, how to find top dead center on a chevy 4.3l vortec engine, set chevy 4.3l vortec engine to top dead center, where do i point my distributor rotor, chevy 4.3l vortec and where to point distributor rotor, where do i point my distributor rotor