I just bought my double roller timing chain today from advanced auto and noticed something odd. Were it lists the engines that it fits, instead of just saying 350 they list it as a 350L. Im pretty sure that the L may be for the vin # of the car that the engine was out of, but not knowing what the original car was how do I know if I got the correct timing set?(The engine was said to be from a 69 camaro{dont know for sure })

Thank in advance, JC