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**crossy** · 07-31-2003, 03:43 PM

If you are asking about retrofit? than I would assume you need to start with 87-91 (in our body style) Wiring set up that has ECM.
Mine is that exact picture , thank you, but does include an already modified TBI unit which is just air regulator now. MIne also has the correct EGR valve already in it .

For anyone else that might think about a retrofit to older rig I do have a set of factory 87 manifolds that have the O2 sensor bung in them. I also have shorty headers , alumacoated, with anti reversion cones in them ( old, but good ,technology). I am not 100% sure the headers fit though. offered only to buyer of injection.
That conversion can't be out of touch for mortals because there is a guy on the 67-72 board that has done all of his toys into TBI units.
As a matter of fact i was supposed to tell him if i wanted to sell this set up. Damn who was that ?????? or was that 75chalet???
DAVE

07-31-2003, 03:43 PM	#3
crossy Oh,you can't buy that new Join Date: Apr 2000 Location: Pennsville,N.J. 08070, USA Posts: 2,042	If you are asking about retrofit? than I would assume you need to start with 87-91 (in our body style) Wiring set up that has ECM. Mine is that exact picture , thank you, but does include an already modified TBI unit which is just air regulator now. MIne also has the correct EGR valve already in it . For anyone else that might think about a retrofit to older rig I do have a set of factory 87 manifolds that have the O2 sensor bung in them. I also have shorty headers , alumacoated, with anti reversion cones in them ( old, but good ,technology). I am not 100% sure the headers fit though. offered only to buyer of injection. That conversion can't be out of touch for mortals because there is a guy on the 67-72 board that has done all of his toys into TBI units. As a matter of fact i was supposed to tell him if i wanted to sell this set up. Damn who was that ?????? or was that 75chalet??? DAVE __________________ "been there, done that, ruined the T-shirt". 2007 LBZ GMC Sierra, ECSB 2006 LM7 RCSB Silverado 98 Vortec project. 94,3500,6.5L 4L80 81 SWB GMC POS finally gone 73 Pinto, stock, w/CragarSS's-eww 84,C10 SWB-Yella,stock 86 K10 SWB-Red, hopped up 305,4/S LOTS of Cummins trucks. Last edited by crossy; 07-31-2003 at 03:50 PM.