Uprated oil cooler? Baffled sump?

Hi guys,
I'm just planning an engine rebuild after sulking for 4+ years when it last went pop.
Is there such thing as an uprated oil pump or will a new standard pump be good enough?
And is there a need to further baffle the sump if using the car on track.
My last engine spun the big end shell on cyl 4 on track at Rockingham.
Cheers,
Ben.
 
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