If you don't like the hydraulic rollers just put the solid rollers on the same cam. If its a true hydraulic lobe profile it will have aggressive lobes so it will probably make more power on a solid roller lifter with tight lash(.012-.016). I wouldn't worry about duration loss with valve lash on a solid roller profile because some of the solid profiles can have really slow accel/decel ramps and just add unwanted overlap at tight lashes and you wouldn't be doing yourself any favors tightening the lash. If you have lobe numbers and the manufacture of both cams it would be easier to make a more accurate determination. AG. I have thought of this and going to a 1.65 or 1.7 rocker.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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