N
I picked up a used motor 14 800, It has a slp pipe and right now Bikeman high elevation 37.5cc head on it. Also has pcv that has slp map stage 3 70-229 on it. Would like to run it at both at 1500 feet some and then out west 7-9k. Was going to order Bikeman slow altitude head to use but more curious about mapping changes if any that maybe needed. I think the motor was run at 3-5k as it was setup with a shot of race or octane boost.Thank you for any help.