David has lot's of experience running Rons stuff, and he runs larger engines. my biggest engine is a 434" SM/BLK and it has Hilborn stacks on it. The 4.1 toilet bowl is on a 377" SM/BLK. I'm not a fan of James Monroe, because i've known Ron since the mid 80's when i lived i Phx Az. But i'm sure that David/hammer is spot on on the setup for your setup. No David i'm not kising up to you i just have a lot of respect for what you have done and accomplished with the Rons stuff. Enough said.
Zip.