Metal Man,
Welcome to the site......
If you are going to be playing with these motors you really need to follow the progression of modifications.
You can find everything you need to know in the tech vault but a quick rundown would be:
1 Remove AI. Get a kit from Brent at NewSpeedmaster.com.
2 Sync your carbs.
3 Adjust your Mixture Screws. You can get this info from Pat's (Dinqua) site in the Tech Vault.
4 Sync your carbs
5 Change out or modify your exhaust.
6 Sync your carbs.
I think you can see where I'm going with this....do one thing at a time.
Good luck
