Iam running 400s at 4360 feet! and that just a little rich, but better safe then sorry!!!!
iam going to try and run a set of 380s at 5000-6000 feet , then 360s at 7000 feet, then maybe a set of 340s at 10000 feet
dont know how high those areas are but!
OK KOOL, good to know. I'm at 340/380 PTO/MAG but just installed a Holtzman ATACC compensator so I need to jet for -30 @ 3000 ft. My pipes are a little different than yourss, Mine are jaws, the belly looks a touch shorter. And i'm 722, not 740. But that may be splittin hairs.