Hello everybody!!
I have a 87 GPZ500 which i'm working on. I put pods and a Muzzy 2-1 on it and scrapped the stock airbox (probably a mistake). Now after reading on the forum ive decided to make a custom airbox from a spare electronics box i have (see below). I drew a diagram of what it would look like but i have a question. What size should the intake holes be to give the a similar preasure as the stock box?
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I have a 87 GPZ500 which i'm working on. I put pods and a Muzzy 2-1 on it and scrapped the stock airbox (probably a mistake). Now after reading on the forum ive decided to make a custom airbox from a spare electronics box i have (see below). I drew a diagram of what it would look like but i have a question. What size should the intake holes be to give the a similar preasure as the stock box?

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