need help doing efi to carb swap ?S

i have a 89 hatchback 5 speed and i reringed another motor and plan to put it in . what all do i need to swap to carb?

i have a holley red pump for fuel
msd 6al for ignition
i plan on using a distributor from a 85 roller motor from autozone

someone said u had to cahnge something in the lifter valley but i dont see what? im just asking before i do it ?

also i will have the full mass air conversion for sale if anyone interested and efi upper and lower injectors and all


also the new motor is a 92 with f 303, 1.6 roller rockers, wiend 8011 intake , 650 holley and a 125 shot of nitrous the stock 92 motor ran 13.6s with gears and exhaust in my buddys car with 120,000 miles anyone have a close combo or any predictions on what it will run car has full exhaust , fivespeed , 373 gears

thanks for any help