2-stroke-addict Posted July 22, 2021 Report Posted July 22, 2021 I have a 421 cub making 99.8hp on pump gas at 5800ft it has 35mm pwk carbs shearer s/b inframes and 4° advance on timing! If I get smaller cc domes to run 110 and bigger carbs will there be a significant gain in hp to justify the money spent? Will mostly be used for drag racing! Sent from my SM-G986U1 using Tapatalk Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.