Question about 7AFE idle. Options

[rapid36]

So First off I did some research and I have the exact same problem as this thread http://www.6gc.net/forums/index.php?showto...p;hl=idle+drops Minus the starting issue, my car starts up very quickly each and every time. However I am trying to check my idle, I got the car to operating temp and I did not have the A/C running nor was the radiator fans running, and my idle was at 1,100 rpm. So I did some research on YouTube and I ended up loosening the distributor and twisting it to adjust the timing (I marked its original location just in case I need to go back to the setting I was previous running on) till I got to about 800 rpm (book calls for 700rpm with 5-15 degrees of timing). I tried getting it to 700 but I got it as close as I could and like I said I think its currently running at 800 rpm. Now I hooked up my timing light and the timing isnt consistent so I cant get an accurate reading, I think its cause my idle bounces by like 50-100 rpm constantly fluctuating. Now this car was recently resurrected from a 5 year stand. the motor came from a junkyard online and they said it was tested (not sure how legit that is), The car got a huge over haul, new rear main seal, new torque converter, net spark plugs, new fuel filter, new radiator, new vacuum hoses, new radiator hoses, new spark plug wires, new front and rear 02 sensor, ebay headers and down pipe, magnaflow high flow cat, all motor mounts have been replaced with some junk yard ones that appear to be good, 2 of the mounts were bought brand new.

So I guess my question is the idle suppose to be jumpy by like 5-10 degrees and consistently fluctuating? Is this normal?

This post has been edited by rapid36: Jul 6, 2015 - 2:05 PM

[Box]

EGR really has nothing to do with mpg. If you let it sit for 5 years it's likely the injectors are sticking and leaking fuel.