yeah this is the only one that I had seen with the 350 set up, it looks all original and only has 475hrs and for 15 grand I couldn't pass it up

When are you picking it up and where do you boat?

I'm picking it up sat and I boat in upstate NY on lake ontario

I've got the same boat only an '87
I did have trouble with one of the motors, could never get it to run right. I've spoken to many people and it seems like if they run well then leave them alone. My experience has taught me if they start acting up, put an intake, carb, and ignition on them, save yourself the headaches. The electronic parts are all gone.
Don't believe all the doom and gloom about the Alpha SS drives. I've only managed to break off a couple of teeth off a gear in 8 years of running them. I rebuilt them with the Merc HD gear set, run synth oil (change @ 10 hr), and a drive shower. Watch the holeshot starts and pull back on the sticks when flying the boat and you will be fine.The props I use are labbed Mirage 21p, dropped to 20.2 and cupped, it was a completely different boat after that.
Congrats and enjoy it's a great boat.
Let me know if I can help with any more questions

Look me up next year!! We spend most of the summer on the big lake..

yeah I know I've been on your boat before the layout of the cabin on yours is why I went with a Sonic I keep my current boat in Sandy Pond so I'm sure I'll see you next year.

thanks for the advice sonic30ss the boat was a repo and the props are gone and the seller suggested 23 props but your the second person that said 21s what type of speeds have you seen with yours

Top out at 63-65 with the props cut down and cupped.
You may see a few more MPH with the stock 21s but full of fuel and gear for a weekend, it will be a bear to get on plane.
I don't think you could turn a 23 to full rpm.

If yor looking for a prop for your sonic I have a spare one from when I sold my boat Mirage 48-13703 a41 21pitch 3 Blade one blade has a slight rough edge its yours for 70.00
I think its
left handed Paul

Just got back from wisconson with my new sonic cant wait to put it in the water next weekend hopefully the weather forecast gets better I really wan't to atleast try it out before I winterize it