correct on the windage tray
a crank scraper scrapes oil off of the crankshaft so that it stays better balanced at high RPM's
A main cap girdle bolts on to the main caps so that they are supported on the lower end of them.
check out
www.dssracing.com
again, this is as much as I know and should not be taken as the bottom line. Just trying to get you started on your own search for a good setup for your car
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'88 lx, Black on Black, check it out
here
Spent all my money on school, what a dumb mistake
I'm old enough to know better, but still too young to care.