so i am looking at a forward facing plenum for my r32, have an stroked rb20 and next on the list of upgrades now that i have finished the engine is a plenum, basically the power side of things has already been sorted out and mopre than anything doing it to get rid of the cross over pipes and tidy up the engine bay, basically what i want to know is bigger throttle body size i.e 90mm better then say a 75mm, there are options ranging from the 75mm through to 90mm for me to choose from, anyone with experience using this throttle body size or info to help me would be much appreciated
regards
jeremy