Harmonic Balancer options for mild 273???

Need to get a new harmonic balancer dampner for '66 Barracuda 273 Commando - mild build up, about 285hp. She's a cruiser and occaisional 6000rpm shifting :D and I drive her about 500 - 700 miles a year...Any suggestions? I saw that Jegs & Summit have some inexpensive ones for around $70.00. Will these suffice? Right now I have the stock dampner and the insulator slipped, timing adjustment are by feel.