Just wondering,, did you clearance the Eddy head for the push rods. I'm going thru that right now. My valve train was noisy. I had to take the engine apart because I feel the machine shop left trash from machining in the block. Wore the main bearing out and the crank with only 6 hours on the engine. Anyway while rechecking EVERYTHING this time during reassembly with checker springs in the heads I found the push rods were interfering in the head BIG TIME. The higher the lifter went the tighter they got, even scuffed the side of the lifter as it was being forced sideways. You cant check for this with the running springs installed. I'm having to remove a lot of aluminum to get clearance. I think part of the noise was the push rod contacting the head on lift and coming away on base. I've had the left side head literally on and off 15 times to get the clearance right without going thru the intake runner. I'm using Hughes roller cam, ($550cdn second set of) retro roller lifters, and roller rockers, on Eddy Perf rpm heads.
Larry