Howell RPM reference

[Jason Weir]

the attached schematic is what I've been told Howell uses in their
harness to fix that problem, but you are correct that they get RPM
reference from the negative side of the coil. 


WEG1192 at aol.com wrote:
> 
> List,
> 
> Someone asked me a question about how to get his Jeep working with his DIY
> TBI on his AMC 360. In the process of helping him out, he told me that Howell
> gets their RPM reference by connecting the white wire of the distributor
> harness to the negative side of the coil. Has anyone done this before on
> their setup? I think I asked if this could be done before and was told there
> are voltage spikes on the coil neg that the ECM could not handle. JW
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