Street/Drag, much more mid-range and top end power, idles smoothly Best choice for modified 74in. - 80in. motors and small strokers Spring spacing required Intake Opening (degrees): 26 Intake Closing (degrees): 50 Exhaust Opening (degrees): 53 Exhaust Closing (degrees): 25 Intake Duration (degrees): 256 Exhaust Duration (degrees): 258 Intake Lift (in): .485 Exhaust Lift (in): .485 Intake TDC: .187 Exhaust TDC: .176
*Images in the listing are for reference only. Actual product may vary.
*Tinted shield sold separately for all Full-Face helmets unless otherwise noted.
- Brand: Andrews
- Street/Drag, much more mid-range and top end power, idles smoothly
- Best choice for modified 74in. - 80in. motors and small strokers
- Spring spacing required
- Intake Opening (degrees): 26
- Intake Closing (degrees): 50
- Exhaust Opening (degrees): 53
- Exhaust Closing (degrees): 25
- Intake Duration (degrees): 256
- Exhaust Duration (degrees): 258
- Intake Lift (in): .485
- Exhaust Lift (in): .485
- Intake TDC: .187
- Exhaust TDC: .176