Upgrading Handlebars, cranks etc to carbon.
I currently have and aluminium 8 speed Schwinn with carbon forks as my racing bike. It will be my bike for at least another year until I have enough saved for a new bike. I've been riding for 8 months and have started racing against others with more expensive and lighter bikes. Would it make sense to upgrade certain parts (handlebars, crank arms, saddle, seat post etc) to carbon parts in an effort to lighten the bike. I normally find good deals on ebay and I can upgrade in small increments. Thanks in advance.