Requested oiling mod info

What book is this? Also, do you do both the tube and lifter valley crossover together. I have engines with just the crossover.

S-A Design "Mopar Performance" used be be sold on the racks at Speed Shops and such.

The 2nd Edition cover is dark red with a picture of a chromed out small block.

This is the 1st edition cover:

91InkIG428L.jpg

2nd edition cover:

b325_Dodge_Plymouth_Performance__92633.1339460183.jpg