Thanks for the replies. I have not measured vacuum yet. The intake is a performer rpm and not a performer. The valves are 5.10 length and the correct pushrods were installed to compensate for the taller install height of the valves. So, there was plenty of retainer to seal/guide clearance. Thanks for the video, neighbors complaint. Mine doesn’t have the same sound at idle as yours. I am starting to wonder if my cam was mis marked or something.
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