Which prop for delta 5.8 90 mar 2 stroke?

[tango1]

delta 5.8 90 mar 2 stroke standard prop light load.
problem is that it gets to it full speed 35 knt easy but with loads of extra revs to spare. my thoughts are that if i was to change the prop to a bigger size or pitch, it should go faster and in turn give more economy at 35knt or am i talking a lot of s--t if not what size and has anyone got one for sale?
cheers

[Nos4r2]

Originally Posted by tango1

delta 5.8 90 mar 2 stroke standard prop light load.
problem is that it gets to it full speed 35 knt easy but with loads of extra revs to spare. my thoughts are that if i was to change the prop to a bigger size or pitch, it should go faster and in turn give more economy at 35knt or am i talking a lot of s--t if not what size and has anyone got one for sale?
cheers

What size is the prop and what make is the engine? it'd help...

[tango1]

Nos4r2 sorry its a mariner and i understand that it is the standard prop. i have looked for the size but unable to find it.