lift

Sup guys? I've got an issue here with my 78 sitting WAY too low! It originally had the L6 now has a small block. I went to add headers and 3in exhaust, but when i sat the car on the ground the header collectors are only a couple inches off the ground and i noticed everything else in the front...

Im looking to lift my 79 4door and put 24-26" rims on it. What all do I need to do to make rims and tires this big fit on my car? Im looking for the cheapest way to do it... Please help me out! Also I wanted to know if I could swap out my front bench seat and put in some buckets and a center...