Quote:
Originally Posted by 56markII
I have been told by the.......
As for the size of the carburetor, take a look at those iddy biddy carbs used on the 2 barrel 283 and they most certainly were not much larger if they even were? They put out around 188-195 HP so given this and the breathing limitations of the flathead, unless I'm going for as much HP as possible which I'm not, the Holley 885 could remain?
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Here are some real world numbers for you from a post I made a few months ago :
"On my way back from the post office today, I stopped at my shop and threw a caliper on a Merc manifold and a small base 2G, just to see how much difference there was. The throttle bores in the Merc Manifold were 1.300", while the 2G has 1.4375" throttle bores. A little basic math and I came out with a total throttle bore area of 2.654 sq. in for the stock Merc setup and 3.418 sq. in for the 2G. That means the throttle bore area of a 2g is almost 30% larger than the Merc. Definitely a significant improvement."
The 2G will bolt directly on the Merc manifold, and the manifold will easily accept being bored out to match the Rochester carburetor. I have done several, both cast iron and aluminum.