***** help please****

[flaquitokid]

Hey so I bought this S13 240sx about 5 years ago thinking I could turn it onto my dream track car/ daily driver. Then the economy took a drive and now I baby my car to try to keep it running just for work. It has crossed my mind to sell it but the odometer is broken and I overpaid and bought the car for $5,000... oh and 6 months after engine blows, so I have an S14 engine now with probably 100,000 miles??

I got a leak in the coolant hose inside the intake manifold and so instead of paying someone I tried to do it myself..... and got the top mani out.

Now i'm looking at it and I'm wondering after spending 2 days trying to take out the mani if there's anything I can replace/clean/upgrade so that my car can last longer.

Also anyone might know why my stereo gets on fire?, sony xplod (no amp) just basic cd stereo

I'd really appreciate your guy's feedback.