377HP is very nice -- Well done -- My Ghia goes in for it's E85 tune at Westech in Mira Loma Oct 5th -- I don't believe I'll be able to match your number though LOL
The magic air pressure number for those Drag Radial is 10 to 10.5 psi -- That is where they really started working on my old Fiat (and other people's cars)