Chevelle Tech - View Single Post - Cowl induction air door (continue)
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post #14 of (permalink) Old Apr 22nd, 19, 10:01 AM
Tech Team
Join Date: Jan 2004
Location: Alberta, Canada
Posts: 433
Re: Cowl induction air door (continue)

Originally Posted by Dean View Post
Anyone know what size orifice is needed?
Start with the smallest drill bit you can get and work your way up until the door closes on start up, then increase the hole progressively until you get the amount of action on the door you prefer.
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