Quote:
Originally Posted by daverdfw
So I have Factory Pro kit, M4 full system. K&N filter and KLEEN delete. I took it for a test ride today before track day tomorrow. I am 112 mains and 3rd clip position. I notice a stumble at 5-6k RPM. would washers on the needle help solve this?
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Added 1 washer below and 2 above and fixed the issue.