I have a couple AVS but one is bolted to the 383 in my truck right now. I think I may buy a couple of new 800 AVS and they should work excellent for my new over 500 inch engine. We'll see how my tuning skills are getting them to work with a roller cam, I will run a 4000RPM convertor though (go big or stay home right?). Here's the missing shot of the later style air filter and how it won't work with a sideways 1850 either.
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