Need to change prop ?????

[8-ball]

Gentlemen, Am just about ready to change stock 2 bbl on my '97 sweet 16 with 4.3 vortech to a Performer intake and 600 cfm Edelbrock 4 bbl with 4.3 jetting.
Question : will I have to change my current 3-bladed ss Mirage with 23 pitch ????
Your input appreciated. Thank You !

[smokediver]

nope ... keep what you got .... but if you have the 1.8 ratio ... you may be able to turn a 25 turbo and pick up a little speed . figure picking up between 250 and 400 rpm doing the swap . i did the same thing a few years back when i had a 6 in mine .... i am thinking you are probably turning around 45-4600 rpm with that 23 mirage plus .. after the swap you will be in the sweet spot :)