Originally Posted by
onyd 45mm will be at least large enough. It does not matter it is try-jet or not. The good thing about try-jet is, it can be jetted leaner in lower RPM (air quantities) and still running rich enough on top. This usual means better fuel consumption and in case of a very fast cam, less problems with over fueling at "off cam" situations.
I which all carbs where try-jet. Latest Webers have this provision but where never drilled from the factory. Fuel injection came in just a little to early
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