Sorry far away from my Cherokee, I am at work now, for two months more, before I can pull my computer to see what chip it has. Taught I had a picture but, it does not show the label on the cover of the EMC. grrr
I am not going to have time to learn to tweak my computer, just want to see a explosion in power
The engine is a 350 years 69-79 basis the casting numbers on the block. Just overhauled it, all bearings renewed pistons and crank shaft are original.
New camshaft COMP Cams Xtreme Energy 4x4 Cam and Lifter Kits
Part Number CL12-239-3
Basic Operating RPM Range 1,300-5,600
Intake Duration at 050 inch Lift 218
Exhaust Duration at 050 inch Lift 226
Duration at 050 inch Lift 218 int./226 exh.
Advertised Intake Duration 262
Advertised Exhaust Duration 270
Advertised Duration 262 int./270 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.462 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.480 in.
Valve Lift with Factory Rocker Arm Ratio 0.462 int./0.480 exh.
Lobe Separation (degrees) 111
Grind Number CS X4 262H-11
Rocker Arm Style Roller tip 1:1.5
Product Line RHS Pro Action Small Block Chevrolet Cylinder Heads
Summit Racing Part Number RHS-12002-02
Cylinder Head Style Assembled
Cylinder Head Material Aluminum
Cylinder Head Finish Natural
Combustion Chamber Volume (cc) 72
CNC-Machined Combustion Chamber No
Intake Runner Volume (cc) 180cc
Exhaust Runner Volume (cc) 74cc
CNC-Machined Intake Runner No
CNC-Machined Exhaust Runner No
Intake Port Shape Rectangular
Intake Port Location Standard
Exhaust Port Shape Rectangular
Exhaust Port Location Standard
Spark Plug Style Angle
Intake Valves Included Yes
Intake Valve Diameter (in) 2.020 in.
Exhaust Valves Included Yes
Exhaust Valve Diameter (in) 1.600 in.
Valve Springs Included Yes
Maximum Valve Lift (in) 0.550 in.
Outside Diameter of Outer Spring (in) 1.430 in.
Axle gearing 4.56