nathans1970c20

Hello everyone, my name is Nathan. I am new to the GM forum and the "GM life". My grandfather has a 1970 c20 350 small block, when he got sick in 2014 and passed away and left the truck to my dad. He used it as a daily driver and then parked it in 2015 and since last year it has been sitting. In may of last year we got it to run after changing out the fuel. At first I didn't like the truck, I was about 9 when my grandpa passed and he used to drop me off to school in the c20 and for some reason as a kid I was ashamed of it, to this day I do not know why, maybe because I was a kid and it wasn't a new car. Looking back now I would've smacked my past self because I would give anything to be in this truck while it is driving. I just turned 18 a few days ago and my dad gifted me the truck. It holds a lot of sentimental value since it was my grandpas and I really want to get it running again. Do any of you guys have any advice on how to get this truck started up again? Thanks in advance- Nathan.