I have a set of cast aluminum centerbolt valve covers you can try before buying. I had the center webs clearanced by a machine shop and they cleared Comp 1.6 roller rockers without a problem.
They're set up with same locations for oil filler and PCV as factory '88 GTA so they should drop right onto your engine.
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1982 Z28 w/ '01 LS1 + T56, TR224 cam, Katech oil pump, JWIS chain
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