Would the incorrect valve clearance on an engine cause a misfire or eratic idle on 1995 Toyota Corolla

The mechanic says it is a valve mis on the 1st and 3rd cylinders, would i need to replace valves and recondition the cylinder head

2e 1300 4 cylinder engine

Asked by for the 1995 Toyota Corolla
2 answers
What are the compression readings for all 4 cylinders? Ask mechanic, then tell us! Are you SURE about that engine size???
yes if valves are tight it will cause misfires. as indicated have compression test done