Reading his posts he never mentioned if running factory stamped rocker arms or aftermarket adjustable rocker arms



I had the exact same thing happen on a few Comp Cams Hydraulic Lifters when starting up - Stamped Steel Rocker Arms And Shafts / Sealed Power Made In The USA

Many many posts about these hydraulic lifters bleeding down , like mentioned already - Pulled the valve covers , removed the rocker arm assemblies

Inspection - Pulled the intake manifold - Pulled the lifters - Numerous compression checks , oil filters cut open that first summer

Found absolutely zero nothing

My noise totally went away on startup - Now again like mentioned already , just the sewing machine noise effect with these fast rate ramps is very hard to get used to

Comp XE 275 HL - Edelbrock E Street 75cc
10.5 Compression 383/432