Jay thanks for the great info. I totally agree that you did the most scientific analysis possible by just changing the one variable. Trying to optimize each compination would have ruined the credibility of the test. Anyone using any manifold (or other parts) on their engine would be wise to use a chassis or engine dyno to tune that combination of course.
It is obvious we all have much to learn. Thanks for your hard work and patience.
Royce
1915 Model T Ford touring Black of course!
1967 Cougar GT 390 Cardinal Red / Black
1968 Cougar GTE 427 Augusta Green / Saddle
1968 Cougar GTE 427 Medium Blue Metallic / Dark Blue
