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At the risk of sounding like a smart azz, why don't you call Comp Cams and ask their tech folks. They will be in a much better position to give you the correct answer than anyone here.
You may need guide plates also, I can't comment on the compatibility with your engine without specifics, but comp cams can, they do this for a living, listen to the sage advice above.
Sorry, I guess I forgot to add some of the specifics. lol. Its an 85 L98 TPI with stock heads and cams. Here are some pics that I have of the heads. I'll try and give them a call and see what they suggest. Thanks!!