car mechanic advice needed?

[savageman25]

I do banger/hot rod racing at layhams farm as many of you no from another thread () and im starting another season in march and i wanted to no about a carburettor change, now in the car at the moment is a 1300cc push rod engine with the standard carb, now i was wondering if it would run any better if i were to put a carburettor from a bigger engine on it, i had in mind a carb from a 2litre pinto engine. Ive had a look and it should be a straight swap but i didnt want to take my carb off and find that the other one doesnt work properl and having to get a new carb gaskett.
Any help will be greatly appriciated.