k. i just recently installed an alarm for my car. i got the alarm off my dad's old van. in order for me to install it i had to take off the positive terminal from the battery and wire it up there. for some odd reason, my car in the morning or when its warm enough starts revving weird. it'll rev at like 1.5 then drop back to 1.1 or soemting. it'll keep doing that. i checked my battery terminals, cleaned them, etc. checked my air filter...nothign works. any solutions guys??

EDIT: btw, when i turn the blower on and turned on my lights it ends up revving a little under 1.5 and doesn't fluxuate.

why is my car doing this?????