318 Build-up Questions

Your small cam and engine displacement should keep to the small intake manifolds and heads with smaller valves for a high port velocity and a constant smooth quick velocity from carb to cylinder fill. By doing this it helps creste a ramming like effect rather than a large slugish filling atempt that won't have any real speed to continue to try to fill the cylinder.

The Stealth hi rise intake and ones like it will need to have the cylinder heads port matched to the intake for smooth flow. It'll probably provided a minor top end punch in HP, but the rest of the RPM range will make less power. Something noticeable to you.

For a carb, a 600 cfm unit will feed it nicley.