An all forged supercharged 4.6 4V with 6 speed in the SN95 chassis make the Cobra an astounding performer. Cold air intake, pulley and tune work wonders on these engines but the stock Eaton supercharger runs out of volume quickly, don't worry a Whipple 2.3 will make 600+hp easily. Upgrade the input shaft and the transmission is pretty tough but the IRS differential needs some work to handle the power. A bushing kit, differential brace and girdle are a must for these cars and Steeda springs and Tokico shocks will help fix the wheel hop.