HaydenMcCarthy Posted September 11, 2023 Report Share Posted September 11, 2023 Hello, I recently purchased a 421 kit for my banshee, it came with 19cc domes. I’ll be running 35mm carbs. Was just wondering what octane I’ll need to run to maximize the power of the engine, but would also like to keep reliability. Just looking to get it running the best I possibly can. Willing to order new domes. Any advice is appreciated Quote Link to comment Share on other sites More sharing options...
ClaudeMachining Posted September 11, 2023 Report Share Posted September 11, 2023 Do a squish and uccr test and report back.Envoyé de mon SM-S908W en utilisant Tapatalk Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted September 12, 2023 Report Share Posted September 12, 2023 Where’d you buy this junk from? Quote Link to comment Share on other sites More sharing options...
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