I had an immediate interest in the 1250BP as soon as it was announced . I was racing a 125 hp short shaft and the BP was the new legal FJ motor since it had a shiftable gearcase.
I purchased one as soon as I could. I loved the way the motor performed. I did everything better compared to my 1250 short shaft.
Plus it looked racy in appearance and sounded even racier . I liked the way the water dumped out of the big exhaust exit.
https://www.google.com/search?sca_esv=0 ... 3sMSSIUqyMHere’s a video of one running.
https://www.youtube.com/watch?v=CKItw2eCO3cThen later they added the exhaust stack option. Most of the ones with stacks had speedmaster gearcases and not the BP shiftable gearcase
Here is a BP Stacker
https://www.youtube.com/watch?v=yFDNauW21J8Just a “BIT” louder.