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DO NOT FEED THE TROLLS!
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Welcome. The Performance and Tech Support and Help subforums will be best- the 440 is a great motor and depending on how you want to handle it can be really made to sing. My guess is that the easiest way to increase compression will be to check to block, probably bore over lightly and go to higher compression pistons, and reassemble. There are a bunch of part numbers and casting numbers that will help us advise, and the year of manufacture of the engine will also help. I can't off-hand remember if any 440s got cast cranks or not, or forged vs cast pistons, etc.

If it's a smog-era motor, it might be most cost effective to replace the entire rotating assembly with one ordered pre-balanced, once the overbore needed on the block is established. You can get H-beam rods, forged or hypereutectic cast pistons, and a forged steel crank as a set and just have the motor bored and assembled.

You might also be able to increase compression with different heads or with milling, again depending on what year and what heads are present.
 
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