[tortuga]

According to all the modern interweb info out there, there is no way that teeny 8.5 inch stelling and helling air cleaner should have worked on a 425 ci side oiler making 500+ HP? Give it 2 inch height thats 53 sq in of filter area. Using Ci x RPM/25500 yields a required area of 425*6500/25500=108 sq in?

Steve H