I have a 71 Duster Twister with a 318 2bbl. I have a 340 4bbl intake that I would like to convert it to. I noticed that after I put the 340 intake on it has an area that is not covering the heads. The center jet on the stock heads has the lower port and an upper half circle port abvoe it. The half cirlce is not covered, is there a gasket that covers it or is this intake useless for this motor.
Any help would be great, I attached 2 photos
Any help would be great, I attached 2 photos
