Yup.... 2 barrel version rated at 290HP and the 4 barrel performance version rated at either 330 or 335HP.

For what it's worth, the '73 & '74 Chargers are kind of the ugly step-children of the Charger world... followed closely by the 66 & 7's. Just haven't caught on and don't share the value iof their second generation counterparts. For 10K in a 73, you can get a numbers matching rust free original needing little to no work at all, even in a performance variant..... a nice 318 car can be bought for 5k. Just the realities of the market.