Cliff,
Do you have a recipie for a modified Big Block. I have a bone stock carb that has the sizes of the 3rd recipe in your book.
Im doing a 500 Cadillac rebuild and have modified the following.
Earson Cam
Lobe Seperation Angle 112
Valve Lift .519
Duration Int/Exh - 296/306
Duration @.050 228/235
16-17 inch idle at 900 rpm