i'm putting an escort 1.8i zetec into my '83 mk2 fiesta, i'm cosidering putting bike carbs on it and was wondering what i need to know to make my own inlet manifold, port sizes and what are the best(most efficient) bike carbs i should use? would be very greatfull for any help, thanks and just for the record i got a 1.3cvh engine for sale with genuine 26000 miles on the clock, got all mot's and service history to prove it thanks