[Pyrotechnic]

Thanks for the info, I'm learning a lot here. So it looks like if I upgrade, the only worthwhile way to go is the new serpentine setup with the Delphi and 145 amp alternator. I really like the hose routing you did on the 454. I never considered having hoses custom fabricated, is it reasonable as far as cost goes ? Does the Delphi compressor running R134A run as cold as the old R12 setup on these trucks ?

One last question. Where on the head does a hole have to be drilled and tapped, and is there anyway to get around it such as adding a support brace at another location, etc ? The heads I have are Dart Iron Eagle made in the late 80's, so I'm not sure if these will have the hole already or not.