I got rid of the computer stuff all at once on my 84 5 speed. Edelbrock performer with egr blocked, a holley 600 cfm that i had and a vac advance distributor that i rebuilt with a pepboys rebuild kit. Ran great till headgaskets went

If you DD the car i would suggest a brand new carb and distributor, I had a demon Jr 500 cfm on my work van 305 and that ran great too. Plenty of power and will run decent.