Pushrod question.

Hi . I`ve got problems with lifternoise . I run a lunati 268/276 voodo with recommended dual valvesprings ,spring rate 402 lbs./in. Comp cam mech, rockers . Microtrol lifters . Always loud clatter on startup , hot or cold and some while running too . oilpressure is no problem ,lots of it . Now , the pushrods are the oiling type with the hole you know , IS THIS THE PROBLEM? Should i run non oiling type ones , will it make the difference?
Are you running the AMC style of lifter that oils thru the pushrod?