you'll probably want to have the carb area free otherwise the cowl will cause odd pressures (ie low pressure when idling whilst flying and high at full throttle). The result may make the engine response unpredictable.
Ok ok so we have discovered im not the quickest at building planes Iv Just wish there wasnt so many things going wrong, iv got people on the RC forums now telling my Cowl is no go get a new one.
Fudge sake, all i seem to do is chuck money at this thing.
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