power brake booster check valve

All good info but... realized I have to address the oil leaks that hopefully accounts for the low vacuum so off goes the intake and heads to do all new gaskets. Should have done this months ago. Got it taken down tonight and should get it back together by the weekend. Then hopefully next week I can get back on the brakes.

Looking for a single good original intake bolt with captive washer now to replace one with broken washer.