Well stock is about 170-190rwhp, bolt ons you will get about 20-40 rwhp so 190-230rwhp, with full bolt onts / intake manis or cam / throttle bodys and full bolt ons about 220-250rwhp,anything more then 230-250rwhp you will need to go into a pair of new heads or cam/motor or stroker and or power adders of nitrous blower or turbo. or both