JSwinbourne

Im "restoring" my 78 brat, and for now i'm using the stock motor. It's th single carb 1.6 liter. I'm going to give it a complete overhaul, and was wondering if I could convert it to the dual carb setup. Are there any differences between the two motors, like internally? Whould it be worth the time and effort, or would I be better off sticking to the original set up? Thanks.