Skittle im puttin 307Rwhp on N/A with a 9 to 1 fuel ratio lol im to broke to get it tuned once i do shell be a monster. I think whatever you jump out on me at a dig will likely lock that way. Im not sure but im thinkin maybe ill gain 5-15 hp with a 12 to 1 Fuel ratio ??? Not sure how that works really can any chime in with that answer??