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Xtreme Energy
 
K-Kit "Complete Kit" SK-Kit "Small Kit" CL-Kit "Cam & Lifter Kit"
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Instructions		 Camshaft
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Instructions
 
Chevy 262-400 c.i. 8 cyl, 1955-98
Application/
Camshafts		 RPM
Oper.
Range		 Camshaft
Part #		 Duration Valve Lift
w/1.5 rocker		 Lobe
Sep.
Angle		 K-Kit SK-Kit CL-Kit
advertised @ .050"
IN. EX. IN. EX. IN. EX.
Xtreme Energy
Very strong torque, excellent mileage, smooth idle. 600
to
4600		 12-230-2
$118		 250 260 206 212 .432 .444 110° K12-230-2
$335		 SK12-230-2
$213		 CL12-230-2
$187
Strong torque thru low end & mid range, good idle. 1000
to
5200		 12-234-2
$118		 256 268 212 218 .447 .454 110° K12-234-2
$335		 SK12-234-2
$213**		 CL12-234-2
$187**
Excellent response, good mid-range, noticeable idle 1300
to
5600		 12-238-2
$118		 262 270 218 224 .462 .469 110° K12-238-2
$335		 SK12-238-2
$213**		 CL12-238-2
$187**
Great for street machines, largest cam for stock converter 1600
to
5800		 12-242-2
$118		 268 280 224 230 .477 .480 110° K12-242-2
$335		 SK12-242-2
$213**		 CL12-242-2
$187**
Very strng mid-range, torque & throttle respnonse, 2200+ stall. 1800
to
6000		 12-246-3
$132		 274 286 230 236 .490 .490 110° K12-246-3
$335		 SK12-246-3
$226**		 CL12-246-3
$200**
Street/strip, 2800+ stall, likes headers & gears, rough idle. 2300
to
6500		 12-250-3
$132		 284 296 240 246 .507 .510 110° K12-250-3
$403		 SK12-250-3
$226**		 CL12-250-3
$200**
Pro street/bracket needs good intakes, headers, gear & 3300+ stall. 2800
to
7000		 12-254-3
$132		 294 306 250 256 .519 .523 110° K12-254-3
$403		 SK12-254-3
$226**		 CL12-254-3
$200**
Xtreme Energy - 1987-1988 Computer Controlled
Great throttle body, Crossfire or carb engine & 305 TPI. 1000
to
5000		 12-249-4
$139		 249 260 206 212 .434 .444 112° K12-249-4
$357		 SK12-249-4
$234		 CL12-249-4
$209
Best in 305 or 350 Tuned Port Injected engines. 1200
to
5200		 12-256-4
$139		 256 268 212 218 .449 .456 112° K12-256-4
$357		 SK12-256-4
$234**		 CL12-256-4
$209**
Good for TPI 305 or 350 with aftermarket chip and upgraded exhaust. 1500
to
5500		 12-262-4
$139		 262 270 218 224 .464 .470 114° K12-262-4
$357		 SK12-262-4
$234**		 CL12-262-4
$209**
Best cam for modified 350 TPI with improved chip, injectors plenum, runners and exhaust. 1800
to
5800		 12-268-4
$139		 268 280 224 230 .477 .480 114° K12-268-4
$357		 SK12-268-4
$234**		 CL12-268-4
$209**
notes: Except as noted, not legal for sale or use on pollution controlled motor vehicles.
**) Stock springs cannot be used.
 
 
 
 
 
 
 
 
 
 
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Email: tech@FlatlanderRacing.com

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