76 Dodge Dart 225 318 conversion

I recently got my first car which Is a 1976 Dodge Dart base with an automatic 225. I couldve chose a newer car but I wanted something I could work on myself and put myself to work and learn to upgrade it. I found a 318 in the parts yard and I’m wondering what id need to get besides the motor. The slant has minor leaks in the power steering and a lot of blow by which are pretty simple fixed but I wanted something that’d give me a little more hp than the slant. Not looking to make it a drag car or anything so the 318 is the just the next step up from the 225. My plans are to make it a nice cruiser. Should I follow through with the 318 or should I just put my focus into fixing the slant. Any help or advice is appreciated!

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