Is that a Harley shop? How did they determine jets/shims? Dyno with exhaust sniffer or trial and error? Our jets are smaller than HDs. At WOT, I would back off and get a surge in power with 130 mains. Local HD shops and mechanics did not have anything smaller than 150. Also, the Jenks site
says not to shim stock needles (Too short?). Change to Thunderbird Sport needles.
