GM 7.4L TBI Big 3/8" thick injector pod spacer with stainless screws.

Will make a sizable increase in CFM .

  You will need to clearance throttle body for fuel fittings, most likely making a hole for unfiltered air to enter engine.

I have custom machined Stainless fittings to minimize the clearance work.

 These may be used on 5.7L also.

  Custom waterjet 3/8" fuel resistant plastic injector pod spacer with Stainless mounting screws 

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