onegonewild
June 17th, 2009, 01:41 PM
Here is what my current engine is running
383 internal balance
Mercruiser MPFI ported, 27lb injectors, ported throttle body
Iron 64cc vortec ported and polished
Comp Cams Beehive springs for 0.550 lift, Crane gold rockers 1.5 Camshaft:Comp Cams XFI 280 hydraulic roller, Comp Cams Magnum hydraulic rollers
Cam specs:
Operating Range: 2000-6000 RPM
Duration Advertised: 280° Intake / 288° Exhaust
Duration @ .050'' Lift: 230° Intake / 236° Exhaust
Valve Lift w/1.6 Rockers: .576'' Intake / .570'' Exhaust
Lobe Separation Angle: 113°
Also is the tune attached. What do i need to adjust the high octane table to to get the best power(if anyone has experience with these heads!)? I hear 32 total is the best but it feels pretty sluggish off the line. AFR is dead on 12.2 throughout the entire RPM band. Do i need the advance to come on stronger in the lower part of the RPM band and level off at 32 or ??? Any help is appreciated!!
383 internal balance
Mercruiser MPFI ported, 27lb injectors, ported throttle body
Iron 64cc vortec ported and polished
Comp Cams Beehive springs for 0.550 lift, Crane gold rockers 1.5 Camshaft:Comp Cams XFI 280 hydraulic roller, Comp Cams Magnum hydraulic rollers
Cam specs:
Operating Range: 2000-6000 RPM
Duration Advertised: 280° Intake / 288° Exhaust
Duration @ .050'' Lift: 230° Intake / 236° Exhaust
Valve Lift w/1.6 Rockers: .576'' Intake / .570'' Exhaust
Lobe Separation Angle: 113°
Also is the tune attached. What do i need to adjust the high octane table to to get the best power(if anyone has experience with these heads!)? I hear 32 total is the best but it feels pretty sluggish off the line. AFR is dead on 12.2 throughout the entire RPM band. Do i need the advance to come on stronger in the lower part of the RPM band and level off at 32 or ??? Any help is appreciated!!