Well the 90 Sport truck is done here it is after a recent paint job I did myself not to bad (not car show quality) if I say so myself LOL

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Fast355 thanks for your quick response and yes I am using the 7730 ECM I'm not a wire guru by any means but what did you mean by "The 2nd fan output is on the same connector directly opposite the 1st...

Here are the fans I'm using the harness has been built but according the diagram I can hook these up to the ECM? But just wondering if I can splice them into the temp sensor that's on the passenger...

Thanks bybyc5 I really appreciate it I'm running into a problem on the installation of the efans I am using the dual fans from a 05 silverado (cause it's a perfect fit to my radiator but I'm stumped...

Okay finally put the TPI in the truck wiring all done but now the FPR (Holley adjustable) touches the bottom of the upper plenum intake can I just grind down the part of the plenum that touches the...

Thanks Fast355 and dave w

http://i911.photobucket.com/albums/ac314/TXW01/1990%20Sport%20Truck/1991%20Formula%20TPI/10751898_10205219156378368_392002910_n_zps8a56aa50.png

So you're saying (sorry i'm a below novice for wiring) I have to make an adapter that can go from the TBI (1227747 to 1227730) TPI and make the adapter part from the TBI ecu by taking it apart? Sorry...

Thanks dave w for the links. The TPI is speed density, and are you talking about an adapter as to where you can hook up direct to the TBI ecu from TPI ecu? Pic is from the 91 Formula harness with...

Thanks Dave I opened the discussion in the forum I really appreciate the link I know I'm going to have a lot of question concerning the wiring so hope to see some of your comments thanks again!!

Hi guys I am dong a TBI to TPI swap in my 90 chevy truck I will be having a lot of question on wiring heard a lot about this forum all good all good so hope to read some great info here!! Yes the...

Yes the computer and harness came with the engine it's a L98 5.7 from a Firebird Formula here's a pic of it I had it creamic coated and polished I'm just wondering how the intergration of the...

Hi guys I am dong a TBI to TPI swap in my 90 chevy truck I will be having a lot of question on wiring heard a lot about this forum all good all good so hope to read some great info here!!