This is our direct bolt-on rebuilt and bored 46mm 590cfm TBI base (stock is 42mm and flows 420cfm).  Good for motors up to 325hp

 1991-95 4.3L V6 TBI motors found S series trucks and blazer.  There are several linkage combos for these vehicles depending on year and options and you will need to email us your vehicle info and options and ideally a photo of your linkage to get you the correct setup.  Sample linkage styles are shown in the 3rd and 4th photos.

This kit will work on stock motors (will add about 15hp), or motors w/ headers and free flow exhaust.  It will even work with mild cam upgrades - good for motors up to 325hp.  You don't have to program the ECM if you install with our AFPR or power up kit to adjust fuel pressure to match mild came upgrades.  Larger cam upgrades or head change will require a custom PROM

What are you getting here?:

  • bored (46mm) remanufactured GM TBI base w/ new throttle shaft bushing
  • direct fit with correct linkage, IAC and TPS hookups and correct ports  
  • Installation setup instructions for the TBI base
  • Once you complete the installation (about an hour) you will have added 175cfm and up to 105hp over what a stock TBI can flow
  • Pictures are generic and TBI base and linkage my differ from shown.  All specifications and hook-ups will be correct for the applications listed.

Payment and Shipping - All orders are usually shipped within 72hrs of payment clearing and we will upload complete shipping info when it goes out.  Payment is expected within 7 days of item conclusion.

If you have any questions or need fitment info, please email.  We usually respond within 24hrs - Monday-Saturday.

Thanks for looking


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