I had my throttle body ported and polished by a freind that works at a
machine shop. The throttle bores were not opened much, more smoothing and
polishing was done. The throttle blades were thinned and radiused on edges.
As for the differance it made I can't be sure to be honest, I did a complete
engine rebuilt that included a .030 over bore and a stroker crank, and some
Edelbroch performer Rpm heads. So much was changed I can't speak for the
throttle body. That is about the best price I've seen on the Jet module,
think mine was about $240. As for the plugs I'm not sure on those numbers,
I'm running regular Autolite 65's, and they seem to be fine. Hope this help a
little.
Mike
91 CC
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