After fiddling around for a month or so here's my Sealevel jetting on a .060 over 235, Howard's 3/4 cam set at .012 & .014. Single Holley/Weber 32/36 carb on a heated intake. Fenton headers. Petronics ign. Holley low pressure regulator set at 4 lbs. Main jets are; primary 147, secondary 150. Air Correction Jets;primary 160, secondary 165. Idle Jets; primary 70, secondary 65. Emulsion tubes; primary F6, secondary F50. Pump jet 50. Tail pipes are slightly gray, crisp sound to engine. You may have to go with a 145 as 147's are hard to find. Carbs unlimited in Auburn , Washington at 1-800-994-CARB have the best prices on jets, quick delivery.
