Ive seen several of my buddies grenade 7.5's. I had an 87 Monte Carlo with factory 3.73's (7.5). I ran several 10 sec passes, and quite a few 11's, and its still going. But ive also seen them break on 13 sec passes.. I guess its the luck of the draw.... But if i could afford it, i'd buy a 12 bolt or something...
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