Urboyrob

I Took my engine apart and i found out that 2 of the values(cylinder 2) had corrosion build up. I sanded down the values and found out that it actually ate up part of the values. During the inspection i also found out that my block was scaring. Cylinder 2 and 4 was showing some sign of damage when i ran my finger nails through the cylinder. I dont have much money left after replacing parts and constant trail and error. What should I do? Is it worth the trouble of replacing values, get the block bored, and continue finding the missing piece to the puzzle? or should i scrap it and get a new engine?

DirtyDA9

Thank god the valves were alredy bad, cause usi g sand paper on them