Thats funny, they really suck huh? Thats just why my car with them, out ran most cars with their expensive Alum. heads. GT-40 heads are a big improvement over factory heads, and for the price, it's just not worth the extra money for the little to none improvement. If you know what your doing, a good set of ported GT-40's will run with the best of them.
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87 GT, Cobra R's,GT-40 heads,Crane 2031,1.7's, Edelbrock intake, long tubes,BBK cold air, Mass air,pulleys,Pro 5.0, King Cobra,Lakewood Lift Bars,50/50's,subframes, 4.10's.
Best time 12.759
Best MPH 106.79
Best 60' 1.695
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http://www.geocities.com/cobrar93_2000/MyPage.html