...clutch stall speed adjustment is achieved by turning the screws holding the springs in place. Most clutches include four to six springs and adjustment screws... Clutch Stall RPM Race Settings: Briggs Animal 4,000-4,500...Practice Day: Tuning the carburetor, reading the plug, flags, checklists...Race Driving basics...Race Day Setup...Racing...Passing...Carburetors...Exhaust flex...Spark Plugs...Shifters...