Based on the years I used to own a 1982, and then a 1988, Crown Vic with the 302, I do know that the 1982-1985 302 Ford V8 had the variable-venturi car, that gave a lot of trouble to a lot of people.
Luckily mine worked flawlessly though, all the time I had it.
1985 was the last year for them;
For model year 1986, the 302 went to a full EFI system. My 1988 with that setup was unburstable, and the most problem free car I ever had in 49 years of driving, and I owned it for many years in San Francisco, until 1996 when I bought the 560SEC I still have, from a Mercedes Benz dealer in Orange County located near Disneyland.
Get a Summit Racing catalogue, though.. Summit racing is the "go to" place for high performance and replacement parts at a good price, and their customer support is very good.
I know it because when the 302 V8 on the 1987 Mercury Colony Park wagon I'd bought in San Diego and flatbedded it up here about 2 years ago went out, I purchased another rebuilt long block from them, but it was no good, and so they replaced it with a problem free 302 from a 1991 Crown Vic and it went in just fine and ran well.
Good luck with the project! Sounds like it will be a blast to drive when it's done!
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1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ...
1995 E 420, 170k "The Red Plum" (sold)
2015 BMW 535i xdrive awd
Stage 1 DINAN, 6k, <----364 hp
1967 Mercury Cougar, 49k
2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive

(sold)