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After I put the new backplate and filter on I thought that I should have probably put some gasket butter between the gasket and backplate and gasket and intake....opinions?
There is a "suck" and a "push" with a motor.... if you haven't opened up the exhaust, but have just changed the filter, I don't think you'll need any form of fuel management. Only a dyno which can show volumetric efficiency, timing, & air/fuel ratio in a "before-and-after-mods" scenario would answer that question perfectly.