LS1 Help!
1st when idleing my car well rev up to a higher rpm without and well drop down to 500rpm stepping on gas.
(im thinking it has to do something with the Throttle body)
2nd is my Idle sound, As wicked and aggressive as it sounds.Its loping as if i had a cam in it. I only have long tubes and cut outs.
would anybody have any ideas of what are causing these problems.

