warped I. Manifold or wrong one? chevy 350

Just bought an "88" silverado with an "82" 350 engine. Water in the oil, 5 bolts missing in the intake manifold...I think some Good Old Boy tried to bolt the origional 5.7 L manifold to a 350. Are they interchangeable or is this Alum. manifold warped?

A 5.7 L. Intake Manifold won't work on an "82" 350 cid. I checked around and found out. Thought I'd post this just in case anyone else ever wants to know. Now to see if I can fit the "88" TBI on an "82" intake manifold. Nothing quite like talking to myself....

That is pretty interesting. Because a 5.7L is a 350cid. Thank you for the info though