i hade a set of them lifters they were allways loud,
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i hade a set of them lifters they were allways loud,
Two items come to mind, 1) are you running the stock exhaust valve spring retainer ? If you are, I'd suggest removing the retainer as it is a rotation design so the exhaust valve spins during normal valve movement. Many times the retainer will make a clicking type noise that sound like a loose rocker. Just install an intake retainer or a suitable aftermarket unit.
2) Check your valve train closely - make sure there's no coil bind, the retainer isn't hitting the valve stem seal or guide at full open, and that the valve to guide clearance isn't to wide. Too much stem clearance will cause a noise that's worse with high lift cams.
Just my 2 cents . . . .
well the rockers to could be making the nose if the pins are smaller then the roller tips they will rattle or click have see this with roller rocker making more valve train noise