[Diy_efi] coil per cylinder on a smallblock project

[Robert Fleming]

I've posted this to the gmecm mailing list, but I'm statring to think that maybe this is more of the diy-efi area...
 
I've got a vortec 350 smallblock with an lt1 intake with 2002 ls1 gm coilpacks, ecm, and harness that hopefully will all be running together soon.
 
I'm attempting to make this ecm control the engine but the only hold up is the crank and cam position sensor.   For those of you unfamiliar with the vortec crank sensor, it goes behind the timing chain cover and is a ring with 4 teeth and the cam sensor has 2 teeth.  The ls1 has a 2 24 tooth sheetmetal rings that are the opposite of each other (high on one side, low on the other, picture at http://www.gmgoodwrench.com/perfpartsjsp/partlist.jsp?cat=9283&section=ep half way down the page.)    Now it looks like the actual sensors are the same part so I am thinking I can machine a 24 tooth ring to fit under the vortec timing cover to work with the ecm, but how would I now which half of the stamped sheetmetal ring to copy?  Like I said earlier, one half is basically the negative of the other so if I copy the wrong one it would be off 10 degrees or so.    Same with the cam sensor, its 1 tooth on both the ls1 and the vortec, but the ls1 has 2 rings 180 off.  
 
Thanks for any help, this is getting frustrating since this will be in a desert race style truck with support bars all over the engine bay and pulling the engine to tinker with sensors will not be the easiest thing to do once its assembled.  The reason a ls1 block isn't used is because due to extra height it will not fit with the suspension design and packaging of the vehicle.
 
-Robert

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