Info on FBO ecu unit
I know my 408 W2 ran like a dog when my "specialty curved to my combo" distributor was installed. My old setup was 22 initial, 32 total, all in by 2600.
The "tailored to my combo" 18 inital, 32 total, all in by 3500 was absolutely lazy. Felt like I'd lost 75 hp. I agree about the importance of the curve.