LOOK at the stock coil/distributor set-up.If you know which wires from the original harness, would you share that? It sounds like the answer TWO of us are looking for.
There's a RED wire that powers the stock distributor module, and the coil. Use that RED wire with a suitable connector spliced-in, to power the 4-pin module coil-in-cap distributor at the BAT terminal.
There's a WHITE wire on the stock coil. Use it on the TACH terminal of the 4-pin module coil-in-cap distributor with a suitable connector spliced-in, to keep the dashboard tach working.
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But that still leaves you to figure out how to provide the ECM with an RPM signal so it knows to turn-on the fuel pump relay. Which is why I said "Good Luck". I have no idea how you're going to do that, although someone else on another forum claims they had the brute-force solution--run two ignition modules, with the 4-pin module actually running the engine, and the 8-pin module doing nothing but hand-jobbing the computer to keep it happy. I had to point out that the associated wiring diagram drawn by the "inventor" and subsequently cleaned-up by another volunteer, failed to power the ignition coil; and posted a correction. That correction is theoretical, I haven't tested the system and I think the dual-module "solution" is a clever if inelegant way to "solve" this problem. Clearly, this is not something I've done, or would consider doing. Therefore, I have no plans to research it further. You want to gut the computer-controlled ignition, you're pretty-much on your own.
Large cap HEI for TBI engine - Third Generation F-Body Message Boards
TBI - Large cap HEI for TBI engine - Well i have discovered a way to use a performance ignition with my stock TBI. and what a diffrence it made! if anyone is intersted in how i accomplished this let me know i can send my wiring digram of how i trick the PCM into thinking there is a stock...
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A general warning to someone about to jump off a cliff can be a good thing. At minimum, it shows that someone is paying attention and cares enough to say something.No one asked whether or not a mystery transmission would hold up to a 454. For all we know, he's using a chain-driven rear setup from the 1800's.
We haven't even started talking about how to control the 4L60E transmission--which may or may not be what you, or the OP has.
This is a slow-motion disaster. I can see the multiple problems from here.
I asked. It didn't belong in the general forum when it's clearly part of a carb-swap project.No one asked to move this to an lsx / carb swap forum.
Yeah, yeah, yeah. If I see someone about to make a mistake, I try to get them to see the problem before it gets expensive. This is one of the many services I offer.No one asked about fiery explosions, reading wiring schematics, passive-agressively questioning peoples' skill set or guesswork over sensors. No one asked where to download service manuals. From all the replies, it sounds like everyone knows the answer to everything, so would you kindly go back, read the questions and just answer them? Please? I mean really, are we here to help one another?
I will generally stay out of the LSX + Carb Swap section, the Lowered and Bagged Suspension section, the Full Custom Suspension / Cages / Fab section, and I avoid the threads dealing with bolt-on suspension or body lift kits, because in my experience, there's nothing there but trouble unless a person is already SUPREMELY familiar with those projects. A newbie needs an on-site, in-person, real-live mentor to keep 'em out of trouble.
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