[Bernica]

Thanks Dugly!

My metal spinner friend is going to make a 9" FLAT plate with a 5-1/8" hole and 3/16" turned-up lip on the outside, out of material that is thick enough not to bend/warp. I will probably have to make two small relief notches for the float adjustments on my 4150, but not much. That's all I can do. Then, it's just a matter of which filter will fit, noting the comment above about trimming a small amount around the hood scoop opening, which I'm trying to avoid, but may have to do in the interest of airflow. I, too, would like to use the "venturi" type base, but that ain't happening and my Stellings 8"x1" certainly didn't have that. So, they way I see it, with the Extreme top, I'm probably tripling the airflow no matter what, which can't be bad!

BTW, watch the "For Sale" section on this site for a bunch of nice unused K&N filters once I solve this puzzle!!