Grooving lifter bores

The directions with the tool are correct. I grooved the lifter bores on the 350 Chevy engine in my truck when I built it, probably 15 years ago. Oil pressure is just fine, by the way. Remember to massage the lifter bores to get rid of any sharp edges. If you want, PM me and I'll call you and try and explain, it can be confusing to figure out the why's and why not's. The oil goes right on the cam lobes just before the lifter rides on the lobes.

Russ.