Continued trimming side and rear baffles to 1/2” mark from paper clip technique. Also trimmed off extra material from side baffles that aren't needed with the Bill Lane plenum. Test fit plenum again and marked left rear oil cooler baffle for trimming and trimmed. Everything is looking pretty good, but need to reinstall the top cowl and use the mini clay cone technique to ensure plenum to upper cowl 1/2” gap.