Would I have to rejet my carbi in a '92 Brat if I change the air filter?

Thanks Again

No.

 

But a carb change to a weber and a filter change to a K&N will work well together.

Yeh I was just gunna put a K&N filter on my hitachi (i think) to give it a bit more grunt up high.

I would also go to a free flowing muffler, that helps as well. But only so much.

Yeh cause i bought the car about a month ago off one of my sister's friend. I also wanted to know what the stock size of the exhaust is, cause it got a 2" on it atm.