I have two small body versions. One is about three years old and the other one year. I’ve never had an issue. The newest one has the added launch/timing retard option controls which you may not need.
If you search online for bad experiences, you probably won’t find much, other than people making mistakes installing it, (not following directions).
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66 GTO, 495, M22, Strange S-60 w/4.10
Sold new at Royal Pontiac (Dealer# 07-679)
70 Formula 400/auto
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