b16turbobell

im having a problem getting my new rc750cc to fit in a jdm b16 they do not fit in the intake manifold or the oem fuelrail the part#is SL4-750. has anyone had this to happen before. its going in a turbo project its a 92 cx with b16 ,drag turbo kit, and tunned with hondata s200. stock motor for now going to build in near future. going to try for 300whp maybe more if possible. also has anyone been tuned my seendata before, i think his user name is seen4ever