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I'm a big fan of the Progression Ignition unit as well.
I used to think I could set up a curve just fine. This system is such an easily tunable unit, I'll never go back.
Another BB Stroker in our county? Cool!!
My brand new rocker shafts had about a half teaspoon of metal in them. I was told to pop the end caps, almost didn't, but, glad the extra step was taken.
I wouldn't sweat the decimal points, but, yea, that A855 made my pile so much nicer to go distances in.
We go to the Big Daddy show, 74 miles each way.
Filled up before I left, got 13.9 MPG mixed country driving, stayed of the interstate. I have 4.10 gears and 28" tires.
There's more left in...
I was getting a high speed vibration in the driveline of my car. After poking around, found that the spring perches were bending, allowing the pinion rise too much.
After looking around , decided to go with the fancy Smith Racecraft perches that eliminate the up bolts. While I had the rearend...
I had 3 of them back in the day. 2- 9/16" bolts screw upwards from the bottom, it really wasn't that hard.
On a 68 GTO with A/C, you have to remove the A/C compressor, much harder.