Shallower base/drop plate?

So you need a deeper drop base?
K&N makes some. But not knowing your filter diameter, you may or may not find one to fit.
I had to do some juggling between filter heights and drop bases after I installed a 1" spacer under the carb.

http://www.summitracing.com/search/...t-Type/Air-Cleaner-Bottoms/?keyword=drop+base

You gotta be careful not to use a too short filter with a deep drop base because you can restrict the airflow between the cover and the "curve" of the drop base.