The K&N is a major waste of money and will do you no good whatsoever. Any OTR is an improvement. Vararam, has its fans and detractors, but I like mine, keeps the air intake temps very manageable and with some trimming and extra material to seal the pan to the hood, it looks great. With the scoops modified to be open and direct air down, it allows a little outside air to flow down into the engine. make sure you re-tune after adding any OTR. Adding a catch can will really help keep oil out of your intake. When you decide on heads and a cam, a ported FAST 102 with a 102 TB is a great addition.