I have a 3 litre GM OMC with a 2 barrel Rochester Carborator and I am looking to find out if anyone has converted their engine to a 4 barrel Carborator in order to increase horsepower. Any thoughts or suggestions ????
I was thinking of a 4 barrel of approx. 490 CFM for this 180 cubic inch engine. Too much?, will it flood?, will I gain horsepower?