Mustangs Unlimited said that? Are you running the Motorsport meter? I have a Pro M and am still using the stock 19 lbers. The Motorsport meter only comes in 30 lb form from Mustangs Unlimited, so thats probably why they said that.
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NewEngland Auto www.baystategearheads.com
-91 Mustang Coupe, ex 4cyl (sold)
-99 F150, 3" lift, 35" Procomps, Magnaflow exhaust
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