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    Re: Making an 89 Lebaron run in the 12s

    I had a stock 2 piece intake manifold on my FM stage III big valves head and I had a BMF intake manifold on a stock cylinder head. The setup with the big valves head will make its peak HP around...
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    Re: Making an 89 Lebaron run in the 12s

    Go bigger. 44mm intake valve and 38.1mm exhaust valve

    http://www.forwardmotioninc.com/html/catalog/page9.html
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    Re: Making an 89 Lebaron run in the 12s

    Not gonna happen unless you have massive trap speed (115mph+), but then you can put a set of slicks on and get 11s. Go for slick if you want 12's relatively low power.

    Here is a drag time database...
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