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-Stage 1 Street Applications power from 2600-6800rpm, .423 intake and
.419 exhaust valve lift, 252 intake and 256 exhaust duration advertized
(210 intake and 212 exhaust @ .050" duration) Hydraulic Roller-Street applications, good mid-range, works best with computer modifications.
-Street/Strip Applications power from 3000-7500rpm .440 intake and .436 exhaust valve
lift, 258 intake and 262 exhaust duration advertized (216 intake and
218 exhaust @ .050" duration) Hydraulic Roller-Street & strip applications, requires computer modifications.
-Street/Strip high RPM Applications power from
3500-8000rpm .456 intake and .453 exhaust lift, 264 intake and 268
exhaust duration advertized (222 intake and 224 exhaust @ .050"
duration) Hydraulic Roller-Street & strip high RPM applications, requires computer modifications, very strong power over 5000 RPM.
-Turbo Applications power from 2200-7000rpm .423 intake
and .419 exhaust valve lift, 248 intake and 244 exhaust duration
advertized (204 intake and 200 exhaust @ .050" duration) Wide power
range, good power. Hydraulic Roller-Turbo applications, wide power range, good power with few modifications.
-Blower Applications 2600-6800 RPMS, .423 intake and .419 exhaust valve lift, 252 intake and 256 exhaust
duration advertized (210 intake and 212 exhaust @ .050" duration). Hydraulic Roller-Street applications, good mid-range, works best with computer modifications.
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