I have a carb tuning question for the group. I am running a tunnel ram with QFT 750 mechanical secondary carbs. When I bought the carbs the linkage between the primary and seconarys was set up with a 40% ratio (primary's open approximately 40% then secondary's start to open. The carbs also came with a 60% arm and a 1 to 1 arm. Has anyone ever played with this? The boat runs pretty good but like everybody else I'm looking for more. Any help would be much appriceated. Thanks.