Best option in this case is a pertronix electronic ignition module that goes directly in the existing distributor. Super simple to install and very reliable.


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I converted my 455's dual point accel distributor with a Crane XR-I module. It was cheaper than replacing the points and condensor. They didn't have the exact kit, but it only took clearancing the heat sink a little to clear one screw. It has been working great so far...knock on wood. I have about 20 hrs on it so far. The kit was about 65.00. It also has a built in rev limiter. BTW - Pertronix wanted 300.00 to build me a custom kit.

X2 of what Ken said.  I had the Petronix one for 7 years got a new one  it lasted one trip.  Great cheap ignition setup but keep the points setup around and avoid getting towed in.