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Jetting new carburetor to break in new engine. Just got my 2005 trx450r engine back. (Oem welded crank,oem bearings,480 cylinder 13:1 piston,ported racers edge head with plus 1 intake and exhaust valves,monster shorty big bore exhaust,dasa intake no lid on air box,stage 3 hotcam,fcr carburetor bored to 42mm. The carb currently has 178 main and 45 pilot hrc needle 3rd clip air screw 2 turns out. (Was not built for my build). Running vp110. I was wondering where I should start on jetting to break in my new engine I’m scared to run it lean on the break in process. My current elevation is 446ft above sea level. Any ideas what jetting I should start with.
 
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