hey guys, i've been dwelling the forums for about a year now and a about 6months back i picked up a project that i have been slowing working on. between school and work i try to make as much time for me to tinker with the car as possible. In the last few weeks i've actually got it to run

but am having a few problems. oh yeah its a 92 and yes i swapped another 5s into it.
now the problem is when i turn the key off it takes the car a few seconds to actually die. thinking maybe an air leak somewhere? which leads me to my next question, my idle is high and the pedal feels weird. when i blip the pedal there is a delay in the rev(only slightly) but also when it goes back down it drops below where it idles at and then it bounces back up. i did some searching and i found that i just need to adjust the cable alittle bit? what do you guys think?
i would normally just play around with it aimlessly like i usually do, but i dont have nearly as much free time as i use to. your thoughts will be much appreciated.