I got some Brute Force carb spec's
 

service manager has the manual and let me look......the front and rear needle's are different......NFKK (front) NFKL (rear) pilot jets are #38 with 2 1/4 turns out on the mixture screw's.....The mains are huge compared to the Prairie's....... 152 (front) 158 (rear) and are good from 0-3900 ft. I could not find the part number for the CDI (igniter) but it the specs were VERY familiar.....5 degree's at 1150 rpm ( which is the recommended idle speed) and 28 degree's at 5500 rpm....HMMMMMMM I believe the modules and Dyna CDI will hook right up........