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217.473.4998

  • No Refunds allowed.  We ask that you make sure you are confident in purchasing before you pay for our services.  Due to the nature of our business it is very difficult to suddenly get a request for a refund.

  • Build times are now very reasonable.  We are max 3 weeks

 

https://www.facebook.com/SprPerformance/

https://www.p65warnings.ca.gov/

We Specialize in:

  • Custom SBC (46mm) and BBC (54mm) TBI Builds

  • Stock SBC (42mm) and BBC (50mm) TBI builds with mild performance mods

  • Marine TBI unit builds

  • Carb to TBI conversions

  • -6AN conversions

  • Intake boring services

  • TBI boring services

  • Crossfire CFI services and boring

COST OF CORES HAS LITERALLY DOUBLED

if you have a core to sell please contact us.

 

We are now boring in house so we are able to get our build times down to a reasonable time-frame. 

I ONLY RECOMMEND CHIPS FROM HARRIS PERFORMANCE

www.harristuning.com

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