[Christ]

Your cam probably doesn't have enough event timing to do this.

If you're pulling against a closed intake valve, you're wasting a good deal of energy expanding air and it'll pull oil into your cylinder from the crankcase until the valve opens. Once the intake valve opens, air will rush in at super-sonic speeds because it'll be under alot more vacuum than normal, making a rather funny intake sound.

On the other side, you'll be doing the same thing w/ the exhaust, except compressing the burnt gasses against the exhaust valve until it opens, which will cause an excess of exhaust pressure at the header opening when the valve finally does open, until the gasses have expanded back to normal density for the exhaust, making a rather interesting exhaust noise.

So to do this correctly, you want a standard exhaust profile, I believe, which means re-meshing your two cams at different timing specs. Then you want an extended intake profile, which stays open for a few degrees beyond BDC-I.

If you go ahead and try it, count the teeth on the mesh gears and see how many degrees one tooth would set the exhaust cam off by. You might be able to come up with some combination of the mesh gears, timing belt, and adjustable gear that keeps your exhaust cam in spec, but alters the intake cam.

I seriously don't think it'll work out, though.