"on a 55 287 a 56 316 and two separate 347's after searching for a new oil pump(they dont come with the floating pick up either) I simply installed the guts from a current melling 60 psi pump and even at idle the increased oil pressure was impressive. I used streight 30 wt in all my engines winter and summer."
That's exactly what I did on my '57 engine. Made a dramatic change for the better.
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