Why not do it the way the factory did, with U bolts on the intake manifold attaching a bypass filter? Full flow filtration on a stovebolt is a solution to a nonexistent problem. Take that other website with a big grain of salt- - - -it's mostly plagiarized info from other sources with little or no attribution.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!