I'm close to the same boat with a back burner project.
I have an 86 318 roller and some 2000 Mag heads.
I recently bought this-
Voodoo Hydraulic Roller Cam - Chrysler 273-360 (W/ Long Snout) 258/264 - Lunati Power
from a member on FxBO.
Lift ends up a .517 with 1.6 Magnum rockers, which is just under the normally accepted .520 max before machine work is required.
That line has the long snout for the mechanical fuel pump.
How did you verify the 9.0:1? Are they the stock pistons?
Those motors are advertised as 9.2:1, but a lot of folks don't realize it.
