Speedmaster MidRise Air Intake Manifold

I got one of these intakes second hand. The guy i got it from has a dart he drag races. Dont know for how long but he did have it running with it. There is slight carbon buildup starting at egr port. Can also see where he ground out on a couple bolt holes. Other than that it looks out of the box. Not sure why but some reason he took this off and replaced it with edlebrock air gap. And sold to me for 40.00
Im attempting to put it on a 76 360. Shouldnt be any modification to this engine . the truck only has 15000 miles on it. But when i sat the intake on it it doesnt seem to fit. To start i had only drivers side valve cover removed. Thought it might have been the other valve cover holding me up. Removed the other vc. Now it looks better but still doesnt look good. After inserting a screwdriver in holes to line it up the holes appear to all line up. Ive got 5 bolts threaded in part way. Seems to be sitting on the end seals but can easily put feeler gauge between intake and head. With as thick as the end seals are maybe it will seal when torqued. I sould have had this figured out already. But i missplaced the new bolts. And when i was working on it my fingers got cold and i said F it. Knowing it was a china knock off i question the casting. The ports seemed to line up very good using the gasket. The rear edge of intake almost hits the distributor hold down.