The last thing I hit over the weekend was the exhaust manifold issue. The 89 had AIR plumbed into the exhaust manifolds (part of the pile of crap pictured in post 100). I had thought that the fittings would be a standard pipe thread that I could just stick a plug in but no such luck. Plan B was to drill the holes out and tap for pipe thread. So I spent 20 bucks on a 23/32 drill bit (the size drill to tap for 1/2" FIP) The drilling part went good but the tapping not so much. Plan C is to weld a bolt over the hole. (UPDATE: When I went to the hardware store I got some carriage bolts that the head will drop in the hole and try welding that in).
-Richard