1978 johnson 140 & 83 Ranger 330V

[Ranger 330V]

My first post here in the prop thread, I know it comes down to what it does on the water but I wanted the pros opinon on where to start or if anyone has this setup. I have an 83 Ranger 330V, 1978 Johnson 140 V4, and a 6" manual jackplate...I'm going to get this setup on the water for testing next week. it has the original aluminum prop on it. It has serial numbers but no number that would indicate prop pitch. The numbers are as follows... 5347 4098 3225...these numbers are not together...they are all separate. the first two are on the same side and the the 3225 is alone. I'm wanting to have WOT at around 5400 to 5800. I know I'll play with the jackplate but I'm going to start with cavitation plate level with lowest pad. I'm thinking a 19 to 21 degree pitch will be close. I'm really wondering about diameter..I've always known about pitch..what does the diameter change?? I know the larger prop will probably get more bite but will have more resistance in the water. What do you guys think? Anyone have a setup like this?? I am looking for all around speed and planing as in the summer I may pull a tube or knee board. Two props will probably be the way to go. Thanks!