« Reply #1 on: May 28, 2018 - 12:25:03 AM »
Looks like holes some of them are for exhaust hangers. If you are going with stock exhaust you should look/find a diagram and see what you need. I am pretty sure some of those holes are not needed.
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Current Mopar
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)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)