Help on 198

I cannot answer about the Head work but I can say this:
Just opening up the Exhaust and going to the 2 bbl made a world of difference on my 225! Much better mileage and a noticeable increaese in pep.

Just my 2 cents worth.
Later,
Bruce B.

PS: Do not forget to get ALL the Carb and Kickdown Linkages and Brackets!