Valvetrain complete, but a few ???'s

moper said
You are better runing a smaller fliter and changing it more than having no oil pressure at startup when it's cold. In one case, I run the 2.2L size oil filter. It's very easy to grab. But it needs to be changed often, or the vehicle should be limited to low miles with it tho. (it's in my plow truck...)

Absolutely, get that darn thing off there and put the stock type filter back on. I have been around amsoil distributors since the early 80's and have seen those setups kill more motors than do any good. No sense having clean oil if it's not getting to the motor.