...as long as you didnt drive it too far after noticing the leak. Could you still see oil on the dip stick?
Anyways, as others have said, replace all gaskets. Not a huge job. The crappiest part is cleaning the inside of the VC's and removing the plug tube seals. Be careful that you dont install the new ones upside down!
Also replace the plenum gaskets x2--- one on the manifold to lower plenum and one between the lower and upper plenum. Oh, replace the throttle body gasket as well, because when it leaks, it commonly causes high idle. When you get it apart, be careful that when you clean the heads you don't get any gasket material down the drain holes and clean off the mating surfaces well. Its a good idea to pull the half moon "plugs" out from the rear of the heads and replace the sealant. When you replace the VC's, tighten the bolts EVENLY--- I think the spec is 140 in-LBS that's roughly 12 ft-LBS, not very tight! Hence, the cracked VC! In fact, a really common reason VC's leak after install is OVER-TIGHTENING.
So, if you have to replace a VC and remove the plenum, you might as well do both sides, as you will probably never have to do it again! This is an afternoons' job with a couple of beers. Good luck.
PS. the parts are really cheap from Rock Auto Fel-Pro $25, plenum $14, TB $1.50...
Good luck!