I gotta say all the carb problems I am hearing about matches up exactally with the issues I was having with my 5 port. I purchased the 21H carb off of the OS SPEED and wow not a tuning issue since! This particular carb has a midrange adjustment which I'm am curently experimenting with; I would really like to lean the midrange out a bit but that becomes very involved it's not as simple as turning in the midrange seat. I don't want to get off topic with midrange tuning but if anyone has any experience with a three needle carb I would like to hear about it.


Eric
713-392-7480