Looking to Get My SP3 Machined for Injectors

Discussion in 'High Tech for Old Iron' started by patwhac, May 23, 2023.

  1. patwhac

    patwhac Well-Known Member

    Hello, I'm wondering if anyone can provide a recommendation for a shop that can machine my SP3 for fuel injectors. I'm not sure on which injectors I want to use yet, mostly looking for pricing. The one place I found online, Wilson Manifolds, charges $950 which seems a bit high to me considering the SP3 already has injector pads cast in. They provide the machining, rails, and rail mounting.

    Anyone here had this done? I'm trying to figure out the total cost of MPFI vs TBFI! I don't have access to a mill or I'd consider doing it myself, but it's probably better to have a pro it to avoid any possible alignment or depth issues.
  2. Sebambam

    Sebambam Well-Known Member

  3. patwhac

    patwhac Well-Known Member

    Thanks for the tip! I was looking at the materials, one thing that confuses me is: Do you need bungs if you already have pads on your intake? I thought the pads would just get drilled out to the proper size(s) for the injectors?
  4. DauntlessSB92

    DauntlessSB92 Addicted to Buick

    Dano and patwhac like this.

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