I am almost finish my exhaust and i have taken my intake off and will polish it and clean it up a bit. I changed my oem air filter to a k&n filter.

I figure that i will have to make a main jet change but i am not really sure.

With just these simple mods do any of you think i need to rejet or just try it with the stock jets?

Probably not- the stock 35 (I assume its a 35) is a little fat to start with.

You can polish the 90 degree to your carb but on the intake manifold- don't polish it, leave it a little rough (use 80 grit).
You can get a carb spacer and really improve the flow on the intake, thin out the carb shafts and replace those big head screws with button heads.
You can probably stay with the 142/148 jets until you do headwork.

No, you don't have to re-jet. You can do it if you want too, but you won't have too.

Thanks fellas, I ran it yesterday afternoon and it sounds ok. I will be taking it to henderson today and will run it a little more... so far so good...