kevin lane wrote:

Bruce Turrentine told me that a throttle body from a 5.0 liter mustang would
be adequate for the 20B.  I don't have it in front of me, but it is no way
4", maybe 2 1/2"-3"?  The original throttle body is much larger but way more
complicated and heavy.  The mustang body will need some ports welded shut or
plugged.  is this worth messing with or should I go the build your own
route? I plan on a turbo.   kevin

The problem with throttle bodies is pressure drop that leads to a loss 
in HP. The butterflies cause turbulence so the larger the better. IMHO 
a Mustang 3" is too small for a 20B. About right for a 13B.


Paul Lamar
 
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