Laurie,
My pump was a bolt in, but I had to clearance the drive tang on the rear of the pump a little bit to match the slot in my cam gear. The oil passages in the pump and the case do not line up 100%, so I 'massaged' it a bit with a dremel.
Cold OP was about 60 psi on startup, hot OP was about 40 psi at 3000 rpm.
Sandeep
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