273 adjustable rocker arms

I take those reports with a grain of salt.....Some of those reports appear to just take the lifter lift and the actual valve lift and divide the first into the second. That will not give actual rocker ratio, as there are several factors that reduce valve lift from the ideal 1.5:1 SBM number besides the rocker ratio, like:

• Lifter to pushrod angle
• Normal loss of valve lift that occurs with the rotation of any rocker arm through an angle of rotation
• Overall setup, which can change where the rocker's valve end contacts the valve tip, and where the adjuster is set.

Lumping all of these together and pretending it is all due to a low rocker ratio will give a false number for rocker ratio.

It's cold and raining, so I might just check mine out! No promises...it's cold in the garage too LOL