Mootang, did you have these idle issues?
THX (and thanks for posting the graph)
*edit*
This is the Stage 1, yeah?
TFS-51402000
Valve Setting Intake: .000"
Valve Setting Exhaust: .000"
Advertised Duration (Degrees): 275 intake/279 exhaust
Duration at .050" Lift (Degrees): 221 intake/225 exhaust
Camshaft Lift: .312" intake/.319" exhaust
Valve Lift with 1.6 Rocker Arms: .499" intake/.510" exhaust
Lobe Separation (Degrees): 112
Intake Cam Timing at .050" Valve Lift:
Opens 3 degrees BTDC
Closes 38 degrees ABDC
Max lift: 108 degrees ATDC
Exhaust Cam Timing at .050" Valve Lift:
Opens 49 degrees BBDC
Closes 4 degrees BTDC
Max lift: 116 degrees BTDC
Firing Order: 1-3-7-2-6-5-4-8
Characteristics: Good idle, strong mid-range power. Aftermarket intake, heads, and headers recommended. Requires modified mass airflow sensor. Best with 9.0:1-10.5:1 compression ratio.
Recommended Valvesprings:
TFS-51400413 with 1.6 ratio rocker arms
Recommended Valvesprings:
TFS-31400414 with 1.7 ratio rocker arms