Richard, without reading the paper, I assume you're speaking of a vacuum leak. Joanne, listen to this man...As I read thru your post, I would almost bet my life that there is a vacuum leak somewhere. This is exactly what they do, and it's also why they're so hard to find. It could be leaking on the bottom side of the intake, and you would never find it. I seriously doubt it's a cam timing issue...the cam would have to be wayyyyyy out for it to do that. Who rebuilt this engine? Did you guys do it, or did you buy it that way. If you have the 3 position crank gear, you should use the 0 mark lined up with the cam gear. this is assuming you have it on the correct keyway (mine has three) But if it ran before, like the others say, it's not the cam. Dont get discouraged, these things take time, and they're usually a very simple problem. And next time, here's a little time saver for you (or others) Instead of pulling whole front of the engine apart just to check your cam orientation, pull the intake. Rotate the engine to TDC on the overlap stroke (not compression) on #1 cylinder. Measure from the top of the intake lifter to the top of the lifter boss. Use a machinist rule. You should have about .030 more on the intake than you do on the exhaust. If that's the case, your cam is in correctly. Simple! Good luck, I really think it's vacuum. But I've been wrong before. Please make sure you fill us in. John