New to Y-block, Intake Manifold Puzzle

Ill just call it, nice. Get a couple of y block books and read through them. Best i can suggest.
 
Not sure the length but pull one of the front bolts and match up the threads and size. I wouldnt put a bolt in the threads more then a half inch. Threads are in the head, not the intake. Or pick up a bolt set for the right intake you have, probably 10 bucks.
 
I'll stick in two cents here, quick like - be certain you don't put too long a capscrew into the head from that position. It is lined up to interfere with the nearby pushrod and can (and will) cause more trouble than you bargained for.......
 
Not to worry. I gotta pull the intake to change out the leaky valley cover gasket so I'll be able to measure how much capscrew I need at the same time.
 
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