Hello, just wondering the heat range people are running. I have hot cam 2, +3 throttle body and 12:1 piston. I run 14:1 at cruising and 13-13:5 under load for fuel ratio. Currently I'm using a 9 on the heat range but thinking I need to go back to an 8. I'd say my fuel is perhaps little on the lean side if not perfect, but my plug is indicating that I'm running rich(little on the dark side). Everyone I can find runs the 9 plug, is this to accommodate pump gas with this combo? I always run Sunoco 110. Any thoughts? Thanks!