Does any one know what size the cosworth throttle body is? im trying to build a new inlet system for my XR2i. The guy who set my engine up said the standard unit was restricting my power level, so told me to look into building a log type unit similar to the trust electrical kit for the zetec. The problem is i cant just switch to mulit bodys because my head has injector cutouts and iv spent a fortune having it modded, i also want to keep my uni-chip. So i was going to use the lower half of the efi inlet with the injectors then making a coustom plenum with maybee a cosssy TB. Any suggestions?