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FITECH fuel injection and header info [message #339715] Sun, 23 December 2018 17:55 Go to previous message
sandy trout is currently offline  sandy trout   United States
Messages: 51
Registered: October 2018
Location: texas
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78 GMC Royale 26 foot Olds 403 engine

Question: Installing the needed adapter between the OEM intake manifold for the FITECH throttle body to function, will this fit under the engine cover without modification?
Also what header system works on the 403 engine, I am confused on whether the 455 and the 403 used the same part?
 
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