lid off Mike. In my mind, it may be make a f'glass airbox mold or same size which can be cut down and filter added. Would need dyno again check all ok. Or - cut bottom of tank out - hammer! - and see how that goes
as an aside, with airbox off very difficulty to srat from cold and PC had to be disconnected at first as way too lean. Wouldn't suggest running with PC connected before dyno - who knows what outcome
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