I have a question about my 01 cobra that I just bought. Upon first start up of the day, the rpms go to almost 2500 then settle back down to around 1200 for a normal warm up and then go to around 800. This is my first cobra so I wondered if this was normal. Stock except for cai, cat back and performance tune. Runs great other wise. No surging when driving ect.. Thanks for the help.