Not too long ago I put on screaming eagle pipes, after I put them on I had the carb rejetted. Now i boughta Big Sucker 2 intake kit. Do I have to rejet once again or what do i do?

 

Yes you do have to rejet for the increased flow. If you give some info as to what you ride, suggestions could be made as to jetting.

 

The bike is a FLHT electra glide 88 cubic inch w/carb. Would it be easier to rejet or adjust the air mixture? Pros-Cons?

 

You need a rejet, something in the area of a 46 low and a 190 high jet would get you close. Don't drill the slide, it causes other problems with opening too fast under certainconditions and causes the mixture to lean out which will cause surging.
Adjusting the idle screw wouldn't give you enough.

 

Ok so when the rejetted the carb when i put my pipes on they didnt do it for pipes and air just pipes? so i have to redo it again right?

 

If you were running the stock air cleaner before you installed the big sucker, then yes...rejet.

The big sucker will allow considerably more air into the carb / engine than the stock air cleaner. Without adding more fuel to this air, your engine will be running lean.