Join Date: Sep 1999
Location: Austin, Texas
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Re: Anyone install an MSD on their Howell TBI??
The tach filter is really small. Smaller than a match book. It is covered with heat shrink tubing and then hidden by the tape wrapped around the harness. It is probably in the first 6 inches of the harness wiring near the ECM. Before I started this project I looked all over my Howell harness for any special gadgets and completely missed it.