those are velocity stacks, for racing only. for street applications different horns are used with provisions for oval shaped air cleaners.

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I've been calling it as i see it for my entire life and that's not about to change. Take it or leave it.

oh cool beans. thanks

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What's that fuzzy blue thing being hurled this way?
::stick::
BOOSH!!!

Air cleaners are easy, a foam sox type or K&N make a nice rectangle one as well as Hardiman Industries under there Redline brand. Linkage kits etc are all advalible over here off the shelf. multiple webers are common on both 4 & 6 cyl engines in Australia.