Safe RPM for an older 225

[coffeeguy]

1980/81 225 v-6 on a skiboat.

1980/81 225 v-6 on a skiboat. What is a good upper limit for rpm?It has been freshened but I am not sure how long ago. Compression is 130 across the board.
Thanks

 

[ibnfshn]

That motor should run close to

That motor should run close to 5500 RPMs at WOT.

 

[coffeeguy]

Thanks. The first test is this

Thanks. The first test is this week.