5sfe changing thottlebody and intake mani. [Archive] - Toyota MR2 Message Board

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ok, i read on this post about the thottle body would need to be bigger for a better airflow but.. Throttlebody - You could use a 4A-GZE or Mustang throttlebody to get a bigger bore and get more air flow. This requires a custom intake manifold and possibly some custom work for the TPS and IAC. With a stand alone this should be easier to get working. requires custom intake manifold? would i have to have some kinda machinist make me a complete NEW mani? has anyone done this? or did they use