[Spike]

Oil pressure seems OK. When cold it is up above 4/near 5/near the top.
When hot at 800rpm idle it is just below 1 bar. Seems typical
for 123k miles?

I notice no oil leaks from the valve covers. bottom of engine
is dry. It's all from the pipe. It smokes mostly at stop signs
after I bring it down from 4k range (until warmed up).

One new note: I cored my catalytic convertor week before last.
I am wondering if maybe because of that the engine is cooler
and so now it is taking longer for the valve guide clearances
to close up?

So, if I'm looking at a top end, the way I calculate things, that
means do it all while I can. Who has good advice on the best
reasonable 3.2 updates for more torque and reliability while
still allowing redline ABOVE 6k rpm? I want to stay single plug...

Can I go to 100mm jugs and still stay single plug?
Should I just bump compression and stay with the 98's or whatever?
cams?

I did a search and didn't see a lot I could easily draw from.
Pelican has a lot of info, but I'm hesitant to take opinions from
people I do not know - who may never have actually done
whatever they're recommending.