I got ahold of comp cams and asked them what cam they recamend for my jet boat. I am looking for a hydrolic roller. The one that they told me to use is #CL456-8, or grind #XM296HR. I am just wondering if any of you have used this cam, and know if it is a good one. (FYI. It is going in to a .030 over 454 with ovalport heads, cast crank, stock rods, and hat .250 domed srp pistions, and a 850 holly carb. The pump is race ready with a ss a/b impeller, dps inducer, loader, and stuffer. The pump has just been gone through and is fresh.) Any and all coments are apreciated.