Roller cam idle RPM

The reason for the mod tho, has nothing to do with the lifters. It doesnt ad any volume to either side. If youthink you have a starvation issue look at the rod bearings. You'll see signs of issues with them first.

Mega - if you have a lifter sticking in the bore you should pull it and find out why. That could become a large issue at some other inoportune moment.