Not Ranked
I had a Vortech on a '90 Mustang 5.0. Car ran great for several years stock bottom end, edelbrock heads, cam, intake, etc. Unfortunately the extra stress from the blower pully eventually cracked the harmonic balancer (crappy design honestly with a very weak point where the key is on the factory balancer).
Car had about 60K on it when I sold it. The newer designs are supposed to be much nicer (and quieter, my A trim was LOUD).
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