i just bought this car and it has a couple of problems,
the instrument cluster doesnt work besides the fuel gauge. ive heard about batteries needing to be changed but where would those be located exactly and how do i get to them? and if any other ideas on what it might be i'd also appreciate them. i also have a high idle problem, it seems to stay around 2000 rpms but then sometimes when its been running for awhile it randomly revs up to around 3000 rpms. any ideas oh how i could fix it and how much it might cost would be greatly appreciated.

thanks

As far as the idle problem, check your idle speed control. I had to replace mine. May want to check your vaccum lines as well.

how would i fix that

Which one?????

Go to Rod's Automobile pages (can't post URL) or mye28 website. Rod's page actual has tutorials on how to fix both issues.