Re: New Member
The biggest difference is the 305A & B engines were 1 bbl carbureted while the 305C,D & E were the same basic Bendix/Stromberg ww 2bbl. Heads were all the same on these engines, yes valves did get bigger in later years with the 305E and C engines. Horsepower went up with cam profile changes in 1966 with both 305E & C engines, they gained a total of 15 net horsepower, the only changes to these engines 1968 was a new breather cap mounted on the valve cover with a hose that ran to the air cleaner which eliminated the breather assembly and tube from the back of the engine.
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