new lazy lifter....

Jadaharabi said
Not all 273s with adjustable rockers had the banana groves from the factory.

Non racers may not know this but.

One of the reasons for adjustable rockers on a hydraulic cam is to adjust for a zero lash to beat lifter pump up.

Yup, but if you do that, you best not have those cheap arse lifters with the stupid wire retainer. They best be heavy duty snap rings.