From what I saw at my customers shop, and what he told me after he got it on the engine, I don't think you can go wrong. He said that all he had to do once it was on the engine was adjust the idle. It's not inexpensive for sure, but after almost 40 years in the automotive repair industry, I've come to believe you only get what you pay for. On a side note, and maybe who cares, Mark Worman of Graveyard Cars uses Harms exclusively. Best of luck.
