vacuum advance with tbi swap?

[az_762_nato]

I searched around but couldnt find a definite answer, but is there any way I can swap a stock tbi setup into my '76 K5 and keep my nice hi dollar billet hei distributor with vacuum advance? I'd rather not have to replace it with a stocker, and its only 2 months old. What is the minimum amount of sensor and wiring I could run and have it all work, I dont need any emissions equipment on it either. Thanks guys,

Jeff

 

[rcamacho]

TBI ECM is usually best served by a computer controlled distributor. You can run it on a mechanical/vacuum unit but it will require computer mods and somewhat defeats the purpose.

 

[bigblock72]

What kind of distributor do you have. As long as you can lock out all of the advance it should work. I usually just connect the pickup wires to a TBI style ignition module, so it's just a plug and play deal. I need to know what style of pickup the distributor has and I can tell you how to connect it.

The minimum to get a TBI running: MAP, TPS, coolant temp and oxygen sensors. If you do away with the EGR then you'll need to get a chip burned to prevent codes. I like to have a speed sensor to make the TCC computer controlled.

 

[az_762_nato]

I have a pertronix flamethrower billet with vac advance. I can lock it out, so it looks like Ill need a custom chip though due to no egr and the distributor.

 

[dyeager535]

TBI distributor control makes for some really nice idle....

I feel your pain though, perhaps you could sell it for a slight loss in $$?

 

[bigblock72]

The Pertronix dizzy has the ignition module and the pick up tied into one unit. I've never tried connecting a module directly into the TBI module before, but I think it'll still work ok, it's worth a try.

If it's something you want to pursue let me know and I'll post pictures of what you'll need to do.