sparks, is that an SFI or don't you need one?
The fit was exactly .ooo1 just what they call for.
It's was just the wrong frequency for my setup, have not had any problems with the Fluidampr
Maybe the frequency of a steel forged crank is different than a junk cast one.
GM first made the forged crank then a cast one of the same design, to lower the cost, but it did not work so they made it fully counter weighted to try and make the cheaper one work.
Back in the day Headrick said he would only get 12-14 runs on a cast crank.
That's why I have used a steel one since 1964 when we started to run this engine.
Since I run a turbo I don't need to turn much over 6000 RPM.
Now making over 900 HP.
