[Rob - UK]

Ok then guys, hit me with some target numbers. What are we looking for here.....?

[StrayDawg63]

Well well that can depend in what your looking for top end or bottom end. So anywhere between .5mm to .8mm. Some go alittle lower but that can be alittle risky. Most shoot for .5mm for the bottom end

[Rob - UK]

Very interesting, many thanks for the info. I'll post some results when I'm done

[EPR]

If you start cold with .5mm when its hot it will be .7 or .8mm. Sam, Boosted306 starts w/ .45mm and when its hot you get what you get,lol.

[Rob - UK]

Really, also interesting! Sam does some good work, my air cooled CAG pictured above is powered by Boosted306

[EPR]

Do you have one of his swirl bore stock modded & re-jetted carbs, work real well on his engines. I tried a walbro and his carb works better for me. I have walbros on some of my other engines, everyone is different.

[Rob - UK]

I have a Walbro WT499 as my bike runs on methanol but many people on here say his carb work is also good. I run a Boosted306 head kit that I'm very happy with and would recommend...

[EPR]

The best part about Alcohol is your engine runs cool. Hard for me to get the stuff and it goes bad very fast, so I stick w/ gas and I have chains saws to keep the forest back,lol.