440 Build Plan

yellow rose said
Making power is about valve lift and valve speed. Of course, you need to consider your minimum cross section and what the valve gear will take and if you can live with the lobe.

And if you have heads and intake that can benefit from the increased lift. The ideal lobe is a square one but that's also hard on valve springs :p

If I was 400 inches I could net .800 lift, but I wasn’t so I couldn’t.

If your aunt had balls, she'd be your uncle. :D