[mdross1]

Near impossible question to answer,unless your building a specific purpose car,drag racer,road racer,or cruiser.Then there are the personal preferences,BB,SB,FE,385,new style old style.Then the drive train IRS,solid axle,narrowed or otherwise.Transmission,wheel sizes,tire compounds the list goes on and on.As long as whatever your preference all the parts and pieces are designed to work together and dailed in to do so you will have what you want.
When building my kit knew out of the gate it was to be big block,stick shift,narrowed 9" coilover etc etc.The car is dailed in and the level of satisfaction could not be higher.My car will go around most and those that can go around me are far and few between,best thing is no other car on this blue ball is exactly like mine,and it was hand built by me.
Good Luck in your choices of parts.