Hi volume oil pump vs standard volume pump
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you have modiflied your passages...........
As everyone should. With the stock system, all it takes is one little mistake.
I have always run manual transmissions, and it's all too easy to make one little mistake, and lose an engine. I made that mistake twice, and I wasn't gonna let it happen again.
And sure enough I made the mistake again. This time I saw the tach needle crossing the 8000line, on it's way back down! Daymn!!. But this time the engine lived.
So I fixed that stinking shifter and haven't missed a shift since 2004.
My engine is very plain. It's just a zero-deck 360 with Eddies and bolt-ons. I did however, have it externally balanced, and told the machine shop I intended to spin it excessively. Whatever they did, they done good. That combo hit 60 at the top of first gear,with 3.55s.