I got an 04 g35x, when i don't fully stop and then press on gas pedal it revs???Y

If the vehicle has sat for such a period of time, it would be advisable to change some fluids - such as the transmission fluid. Whereas it can't hurt -- it may not help. But it just might. Diagnostic testing, otherwise, is needed to see what is happening to cause the symptoms you are having and what can be done -- if anything -- to resolve it. The extra hard part here is that I can't possible know the history of this vehicle and why it wasn't driven for 8 years and what happened before that, if anything. Seems all a bit dodgy. www.repairpal.com/repair-shops