What I will run into with the elevation change from about 4,400 ft to 500 ft. I want to go cruise around Belton lake this upcoming or the next weeked. The boat runs very well at my elevation, but I know there will be atleast some carb tuning involved, Any tips on that or anything else you guys think I may be getting myself into will be greatly appreciated. Motor is a 455 olds, big valve heads (g), torker intake, 750cfm elelbrock performer, no idea on the cam but pretty sure it is not stock. Thanks to all who chime in.