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01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 07-066 67G GRIND 232518 Performance cams for 95 to 107 or even more Cubic Inches and 10.0 to 10.8 compression ratio and high-flow head set up (2600-6500+ RPM). 64G GRIND 730068 High lift cams for modified 95 inch motors running 10: 1 compression ratio or higher. Heads must be set up for .700" lift and modified for peak air flow (3000-6500+RPM). Note: The following 3 grinds are intended for highly tuned engines and require the knowledge of an expert engine builder for proper setup and installation. 60G GRIND 232517 For well-prepared 95 to 103 CI motors with 10.0 to 10.5 compression ratio 100+ HP is within reach (2700-6500+ RPM). 59G GRIND 730067 New grind for gear drive 95 inches with 10: 1 compression ratio or higher. Maximum torque and horsepower at middle and upper RPM ranges (2400- 6200+ RPM). 55G GRIND 730066 Great cam for 95 inch engines with 9.5: 1 compression ratio. Maximum horsepower and torque at mid and upper RPM (2600-6300+ RPM).Same specs as TW55 but with gear drive. 50G GRIND 232510 Designed for easy installation in 95 CI motors with stock heads and 9.5 to 9.8 compression ratio (2400-6000 RPM). 37G GRIND 730064 Twin Cams with this cam grind have shown 80+ rear wheel HP. Smooth idle, broad torque band. Same grind as TW37 but with gear drive (2200-5800 RPM). 31G GRIND 232506 Great cam for motors with 95 CI or more and 10: 1 compression ratio. Lower TDC lift for ease of installation (2000-5800 RPM). 26G GRIND 232500 Bolt-in cam for 88 thru 95 CI motors with stock compression ratio. Great for 2-up touring, this cam will add torque and HP at lower and middle RPM range (1800-5200 RPM). 21G GRIND 232498 Bolt-in cam for 88CI motors provide more torque for all around riding with heavy bikes. Intented for stock compression ratio and pistons. Comparable with Andrews EV23 cam in a 80 CI Evolution (1700-4800 RPM). ANDREWS TWIN CAM CAMSHAFTS WITH GEAR DRIVE After two years of testing and development, Andrews Products is offering cams for S&S gear drives for Twin Cam. The primary advantage is that the gear drives use less engine power to operate than stock chain drives. Dynamometer comparisons show gains of 4 horsepower over similar engines with chain driven cams. When less power is needed to turn the camshafts, more power gets to the rear wheel. For all out drag motors, there is also an additional advantage with gear drive cams. Simply stated, higher lift cams can be used with the gear drive setup. The reason for this requires some explanation. With chain drive 88 cams, valve lifts of .600 or higher will result in interference between front and rear cam lobes. With the gear drive cams, lobe top angles are different so lobe to lobe interference cannot occur. These cams are for use with S&S cam gear drive kit (ZP N721948) . E�G�N� CAMS FOR TWIN CAM ANDREWS TWIN CAM CAM SPROCKET KITS These sprockets are made from heat treated alloy steel with a wider than stock press fit for greater stability. The early style cam sprocket features a stronger than stock full length 3/16" drive key that won't break and includes 3 shims. With the shims, the installed length of new sprockets can be set to the same length of an original stock sprocket plus spacer. Because of the stronger and much more rigid mount than the OEM sprocket, it is highly recommended for use in your engine even when using the stock cam but must be used when installing a high performance Andrews cam. Optionally this rear cam sprocket may be combined with Andrews heat treated steel 17 tooth crank sprocket. There is also a top quality splined cam sprocket available for 2000 and later models but this can also be used when you want to use late style splined cams in your early 1999 model. Can also be used in combination with ZP N700737 crank sprocket. We suggest you to replace the stock cam sprocket ball bearing with Heavy Duty roller bearing. 700736 34 Tooth cam sprocket kit, keyed, early 1999 models (OEM 25563-99) 700835 34 Tooth cam sprocket kit, splined, late 1999 thru 2006 (OEM 25716-99) 700737 17 Tooth crank sprocket kit