i have an 89 caprice classic brougham with the original efi 305. i'm interested in a 350 swap and i'm not sure which year i'm going to end up with at this moment. i'm going back to carb for now and i'm wondering if i'll be able to use the accessories from this 305 on a 70s~ 350 sbc and if i'd need to change any wiring that'd be difficult for a novice.

also, we have a 350 on hand but it's a bit beat. how much would it cost/what steps could i take to have it inspected? should i just buy a new one that we know is running and driving?