Hey has anybody heard any thing at all about the SLP perf. packages that consist of SLP Twin Pipes w/3 Degree Advance Key ,Performance Edition Porting w/Head Modification ,V-Force Delta 3 Reeds ,38mm Carbs . they claim that they get 80hp on pump gas with th 38mm carb. i would be interested for the kits just looking for any info at all good or bad or just anything could help me out thx