The "350HP" is the next step up the ladder to more performance out of your 4.0 based Jeep/AMC motor. This combo features a more aggressive cam profile to give that "Lopey/Rowdy" idle
Jeep 4.0 Valve Cover Perimeter Grommet 7075 Billet Retainer Set(15 piece Raw or Black Out).
Stroker kits - a way to optimize engine performance