I would recommend you watch this entire video to truly get a solid understanding of tuning your FX Wildcat.
However, if you want to skip, go to the 1hr and 4 minute mark and he talks about adjusting the regulators. The example in his video is of a FX Maverick but it works the same
Go to YouTube and search for:
FX Maverick (AIRGUN TUNING GUIDE) !! + Dual Regulator Tuning - Hammer Spring Setup - Airgun Accuracy
Not sure on the front. It will probably be fine where it is other than if you plan to really shoot a high second reg pressure. The second will probably depend on caliber. I believe it comes conservatively set for pellets