Not sure what to do

:popcorn: Pull your distributor out and have halifaxhops go through it. He will put a performance advance curve in it and you will notice the improvement even more than a 4 barrel and intake. I would do that first, then a 4 barrel and intake followed by a nice dual exhaust. Stop there because the next step get's real spendy. Cam, heads,headers,gears, converter. And all those need to go together in a specific order or all at once with a well thought out plan or you will be doing some of it over because it doesn't work well with the combination.
Nothing is wrong with my current engine, its a bone stock 318 from 1974. i want to get more power without spending too much money. would it be smarter to put better parts on my current engine or swap it out? i assume the engine has over 120k miles, the odometer broke before i bought it.

Would cylinder heads with bigger valves and a performance cam be worth the trouble or should i save my money and buy a short block crate engine? thanks for any thoughts and ideas. i want to have fun with the car but it seems to be a money pit when it comes to making it handle and have power