Roller tips will not show enough power gain to measure on a dyno, or a timeslip. The actual ratios on those rockers are said to be more accurate than OEM. If true, it is still not enough to make a difference in anything but a full on racing engine.
Quote:
Originally Posted by texasred
........ roller-tip rockers give you an adjustable valve train ........
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Subject engine was described as "mild" so, unless it uses a solid cam, adjustability is not needed. An exception might be a smaller base circle, on an aftermarket cam, that could cause geometry issues. They would be addressed on a case by case basis.
Norm