I ran some "professionaly ported" E7's that were angle milled with a 5 angle valve job and trick flow springs for 2 years. I dropped off 3-4 tenths of a second over stock.
But I never did get better than a 13.6. Lots of people are running low 12's with the GT-40P heads.
I am going to have to respectfully disagree with my very knowledgeable but wrong MW brothers

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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim.
00' Lightning-Stock
88'CRX-13 second ego killer
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