Hey guys, Ive just finished and installed a freshly built 383 engine into my 78 camaro. When I started it up it was incredibly tappety and still is, Im curious how much adjustment of the roller rockers I can do. Now engine has been built for gas. First quick description engine
Pro topline heads 64cc 200cc runners
Holley Contender single plane manifold "for gas"
Msd HEI dizzy swung for lpg
Scat crank
400 harmonic and flexplate
I beam scat rods 5.7"
Dished 8cc Hyper pistons with valve reliefs short skirts
Machined 4 bolt block decked to pop pistons out 27"
Comp cams Hydraulic camshaft 212-12-2 480 lift intake/exhaust 280 deg rotation
Performance lifters
Mellings High volume oil pump with welded on pickup tube
Yella terra roller rockers pedestal mounted

Now when it was really tappety I popped the valve covers off and the oil flow out the top of each roller rocker was really piss week, it was a weep more than a squirt, the front rockers didnt even have oil for quite some time and high revs finally made them weep. The rears spalttered a bit when revs were up around 2500 but dont know if thats because of rocker movement or pressure. I actually expected a higher oil flow. The second part after the oil was on all rockers it was still very tappety. I adjusted the roller rockers as per instructions, take cylinder to point were non lobe section of camshaft adjust finger tight until nil movement of pushrod wind barrell nut down pedestal shaft further half turn lock up with internal brub screw. Now there pretty noisy, do I simply redajust again, or can you wind them down further until no noise, bit concerned how far to wind them down as pistons pop out of block by 27" and gasket compressed is 39"
Any help would be appreciated
Thanks Steve