Does anyone have a (CAD) drawing of the exact Holley 4150 (square bore) flange? I have an interesting FI idea to test... Any format appreciated, I can import just about anything. Scanned paper drawing will of course be fine too!
I've got an aluminum spacer I can take dimensions from and put it in CAD. It'll be tomorrow as the spacer is at home and I'm at work (where the program is).