News:
what is casting flash?
I match a gasket to the heads and then use a little grease to hold it in place. Then you coat the Intake with silicone and bolt it down centered on the bolt holes. When it dries remove it and the gaskets will bond tight to the Intake and show you exactly where you need to grind. Intakes are always casted smaller than the head ports.
Open spaacers will add plenum volume & decrease response , this will not help a mild engine , a 4 hole spacer does the opposite I increases response at the carb & could help on a mild engine .the ral ? is how much height do you have to spare
Unlike the big block versions the old Ed single planes for the small blocks are junk. Most used the LD340 dual plane before the RPM and modern Victor and M-1 came along because it was a very good intake. On the big block TM and Torkers you can remove most of that lump internally with an air file. You should remove all the casting flash on ANY intake before you use it and make sure the runners align with the ports. I match a gasket to the heads and then use a little grease to hold it in place. Then you coat the Intake with silicone and bolt it down centered on the bolt holes. When it dries remove it and the gaskets will bond tight to the Intake and show you exactly where you need to grind. Intakes are always casted smaller than the head ports.