273 adjustable rockers need refurbish.

What I found that I didn't like: three were at zero preload, the retainer wouldn't last long. One was .080 preload. .020 too much. With the valve moving up in the head over time that only gets worse.

With the new pistons, I don't want to rotate it any more than I have to without oil pressure/lube. Having to check and recheck the pre load has me rotating the engine more than I would like.

If I go with non adjustable and they're all over the place again,I guess I'll just take the heads off again and take them back to the shop that rebuilt them, make them get it right.

Getting different length pushrods for every valve is ridiculous.

I can't just slap them on there and hope they're right.