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    Haibeck Automotive Technology

 

 

Top End Porting

 

The plenum ports are sized appropriately for a 368 cubic inch engine with high lift camshafts. The injector housing ports are enlarged to match the plenum ports. The fuel injector bosses are reduced in size. On the '90 - '92 engines the primary fuel injector bosses are removed. The throttle body is enlarged from the stock 59 mm to 63 mm. Finally, in the air horn, intrusions related to the alternator and air conditioning compressor locations are reduced in size.