As compounds go, that one is an antique.
If the bow is in good shape, it'll still kill a deer just as dead as a brand new one. Just remember that the old thing was made in a time when only wierdos on the lunatic fringe (aka NFAAFreestyle class [8D])shot mechanical releases. Everybody else used a fingers release. You can use a release with it if you must, but that bow will be happiest if you shoot with your fingers.
If you want to replace the sights and/or arrow rest, you will be in trouble. You will very likely not be able to use a modern type arrow rest on that bow. All of them today are made for offset risers and won't have enough adjustment to bring the arrow into proper centershot. Fortunately, Golden Key Futura still makes some of the same arrow rests that they made back when those kinds of bows were in production. Go to their website and look under the Oldies But Goodies section. Also look at their fingers rests.
www.goldenkeyarchery.com
You'll probably run into the same problem with sights. Probably won't be able to do any better than what the bow is wearing right now. A trickI can tell you about if that sight has brass sight pins.... A lot of us primed thosepins with white paint and then painted the ballsflourescent orange so to see them better. Not nearly as good as fiber optic pins, but better than bare brass.
If you're feeling froggy and really want to hop into something neat, you couldtry learning to shoot without sights. If that would appeal to you, beg, borrow or steal the book "Become the Arrow" by Byron Ferguson. He shoots a longbow, but the aiming method he teaches works great for compounds.
You should only use arrows weighing at least 8 grains per pound of draw weight, and 10 would be even better. I suggest aluminum arrowsor Carbon Express Terminators. Shooting ultra light carbons on that bow will make the string connecter teardrops pop right off the cables, and those steel cablescan cut you up pretty bad if they get loose.
Arrows will need to be long enough that the broadhead is drawn no closer than 1/2" from the riser at full draw. Never shoot an arrow that is short enough to draw the broadhead up into the sight window.
Hereis some info for your bow. Axle to axle length 44", overall length 48". String length 37". Let off 50%. It was introduced in 1978, but I don't have catalogs later than that, so I don't know when it was discontinued. Early 80's, for sure, because mosteveryone went away from using wheel hangars by the mid-80's. It was only made in 50 pound draw in 1978, and maximum draw length was 30".
Catalog number was 4650 (not that it will do you any good to know the cat #, just a point of interest.)
Good luck with it.