[bigrob]

The model I have is 80457S electric choke. In my instructions, it states that their carbs are setup at sea level, & you need to go down 1 size for every 2000 ft of elevation. It came with # 64 size primary jets & # 39 secondary plate. I went down 1 size for both. Vegas is at 2200 ft. I leaned out the idle mix screws very little. I also just added a K&N extreme air assembly, which I believe will let a little more air in. I am gonna do as recommended and go down 1 size spring at a time. Due to the fact that I cannot see my tach very easily, it's hard to say with any accuracy, what RPM my secondaries are kicking in at. I would say somewhere between 4-5000. My redline is 6240 I believe the PO told me. I just bough a nice small tach & am going to mount that baby where I can see it!

Thanks for all the help!!