Are you asking about the mounting brackets? If so, I recommend the dual “Renegade” bracket, or that’s what I know it as. I switched to one on an older setup. Very happy I did. Besides being a beefy piece, it had two main benefits I liked. First, a 10 rib pulley will help reduce belt slip. Second, and most important for me, was the tensioner set up. It gets rid of the basic spring tensioner pulley and replaces it with a tensioner that is built into the bracket. This makes keeping the belt at a perfect tension and is a #### ton easier to deal with. That alone is a reason to go with the 2 plate bracket.
Stock block 306, V1 T-trim, AFM B-451 cam, TFS Twisted Wedge, Holley Systemax, A1000, Snow Meth, TKO 600, Team Z, Strange, MM, Lakewood and Moser helps me go forward fast.