As he title says i'm new here and have an odd build. I have a 1979 4 bolt main 350 bored to 355cidhave with flat tops that i am building. I am using 906 vortec heads and a lunati voodoo cam pn 10120701lk and adapting tbi from a 1991 caprice wagon that had a 305. Now i am told that i don't have to tune it because it will make the necessary changes. But i know the obd1 system can only do so much without a tune. So what would i need to complete this build and will i need to tune it?

I am mechanically inclined and pretty good with computers...primary limitation is money.
Thank you all in advance