I have a stock 1994 GMC K1500 350 TBI with stock air cleaner assy, dual
studs for hold down and the plastic ring with hose connection for the
crankcase ventilation connection on the top of the valve cover.
Question: Is there a replacement assembly made to replace the stock closed
air cleaner assy with an open sided free flowing assy, to include the top
cover with two holes for the hold down wingnuts? If so, can someone post a
link? This would eliminate the air box et al.
Additionally, would having an open-sided cleaner with a decent paper filter
element make much of a difference in mileage and HP?
Any info and advice is apprectiated.