Troy 5-10mm wont make much difference.

Another option could be to sell these up and get some downdraft mikuni or
keihins with custom manifold like clyons8 got done by Sykine and have them
angled up instead. By the time you are finished with proffessional
tuning it should still be cheaper than the dellortos, webs or solex/miks.
Theyll be lighter too by far and look sexier :)

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