Not trying to be a "hater" but I have both of those books and to be honest they really do not have a lot of new information in them. I think the one has pictures of modified cars that it uses as examples which kind of sucks if you are trying to figure out what stock looked like. The price is right and you can't go wrong with having books for reference, even if it is just one thing you need at some point.
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)