Originally Posted By: mazdamonky
My vote goes for the most efficient cheap filter you can get. An OCOD is more efficient than both listed and cheaper, or a Fram tough guard. If you want to cut the filter open, this could be our chance to see if a new Puro is even good for 20 minutes of Idling!
No idling!!! Until after the initial 20-30 minutes. RPM should be a minimum of 2000 and varied up and back during the break-in. Hopefully plenty of moly-lube was used on the cam and lifters. Priming oil system thru distributor is a must and the oil has to be full, all 7+ quarts.