the 99+ had 60mm throttle bodies and that is enough flow for an N/A v6. Since you have to put the stock upper manifold back on, just keep w/ the stock TB.
Not why I'm asking. What I want to know if if the 4.2 TB is the same size as the 3.8 one I figured I could half shaft it, and sell it to someone with a mustang.
Do you have a 4.2 TB in your possesion? If you do, measure it and multiple it by 25.4 and that will give you the mm. So if you get about 2 3/8" then it's a 60mm TB, if you get just over 2 1/2 inches then it's a 65mm TB
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