10,000 RPM

[Bruce Plecan]

| >Have never seen an american production V8 with titanium valves and
| >retainers, triple springs, stud girdles (for you chevy guys) etc. etc.
| >required for 10,000 rpm operation.
| >Mega buck Nascar engines don't even like that much rpm.

Maybe a couple years ago.  Some of the incar footage has shown over 9K in
race conditions, and I'd wager, that in qualifing, they are close if not at
10K.
Grumpy

| Aaron Willis