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With some of the top pro's in the sport now running signature series engine they've picked up wins as well as TQ in the largest race of the year the West Coast Nationals as well as several other events
Modify intake port for better flow
FG Marder Beetle
Intake and exhaust ports are modified to our specs as well as the durations
This allows for tighter tolerances and higher reliability when a good sealant such as Yamabond is used
6331 - Full Mod / Signature Series Twin Top Ends 57CC & 61CC With some of the topReplacement full mod or signature series twin top end set. These top ends have been machined for twin use and our billet heat sink. Full mod is our production CNC porting and will have good power from torque through top rpm's. The signature series are ported more aggressively and will have quite a bit more power than the full mod version. We also offer custom tuning on any signature series top ends engines upon request at no additional charge. If
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