Considering a standard mechanical fuel pump on a 2 Litre engine will run twin carbys on a good horsepower engine, you shouldn't need an electric pump for a single on a 1600.
Save your money and put it towards something else.
When you do start to run out of fuel on a carby system, Carter fuel pumps come recommended.
This one
http://www.summitracing.com/parts/CRT-P4070/
or even bigger... this one.
http://www.summitracing.com/parts/CRT-P4600HP/