With the injectors you will need a matching MAF meter. You really could use the factory FPR.
The micro squirt isn't that bad. Best bang for the buck. This replaces the stock ECU and is tuned by laptop.
This thing will need to be wired into your harness but there are tons of guys here that can help with this.
To run successfully you will need
1. Megasquirt
2. 255lph fuel pump ( my 340lph came from amazon less than 80 bucks....340 was overkill I should've gone with 255lph )
3. 30lb injectors
4. Wideband o2 sensor ( I use an lc2 wideband )
You don't need the MAF with microsquirt. That makes it almost pay for itself. This microsquirt will run just about any v8 that doesn't have vvt. 302...to big block chevys. Will run your lawn mower too.
If you are serious about getting the car running right
@a91what can help you get the right parts.
With the microsquirt you can get the injectors off a chevy truck. They are all over the interweb and 47lb.
These things will nickel and dime ya to death, man. Time is the other issue...wiring in the microsquirt and wideband will take time.
The 30 lb. Injectors with FP and MAF would get you running but I wouldn't beat on it without some type of tune.
I had a 347 with 30lb injectors, matching MAF, an e cam and no tune in my 89. It ran but would burn your eyeballs out. I drove it around like that. It didn't blow up. The fuel pump was a 190lph. If your car is a stick it will be easier to drive without a tune because you can control the rpm better with your right foot. Expect some bucking a weirdness but it shouldn't blow up.