Here is nice MSD Crank Trigger Distributor of a std deck 9.8" Big Block chevy, or small block chevy. Includes cap, rotor and bronze gear.
Replacement Cost $360
MSD Pro-Billet crank distributors are built specifically for racing engines with almost no room for a distributor, due to tunnel rams or blowers. These units are equipped with a special low-profile distributor cap, allowing them to fit into extremely tight areas.