For a standard B1 headed engine, what configuration offset should be used? I have been looking around and come across some various options. For example the ISKY 3772-LO-180 has 8 on centre lifters, 4 left 0.180" and 4 right 0.180".
A Comp Cams Elite Roller lifter 98827-16 has 8 left 0.180" and 8 right 0.180"

Thanks for you help!