THE DEFINITIVE GUIDE TO BLACKTOP 20V 4AGE

Stage 1 cam for mildy modified N/A engine with fundamental intake and exhaust upgrade. Great rise in mid-array power compared to OEM cams.Also the opening in the Blacktop inlet ports are roughly four to 5mm broader at their entrance above the Silvertop providing a bigger cross sectional location.Luckily you do have a BGB though. There are actually