JUN makes valvesprings, most people recommend you match your cams to your valvesprings....

Ferrea valve springs & retainers cost 600.00

I would NOT use factory ITR valve train on JUN III's.
Factory ITR valve train is fine for toda spec a's, Skunk2 stg 1s etc... Besides that I dont recommend factory ITR valve train for anything else.

Something to look into would be Rocket Motorsports stuff aka Ef-1 (kteller.com)

I dont know that I would run JUN products in any of my motors, just too much bad carma on the net about JUN.

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Manufacturer / Intake / Exhaust
EF-1 m24 cams 12.1 mm, duration - 258 @1mm 12.1 mm, duration - 258 @1mm


Toda Spec A 11.6 mm, duration - 250 @ 1mm 11.2mm, duration - 240 @ 1mm
Toda Spec B 12 mm,duration - 255 @ 1mm 12 mm, duration - 245 @ 1mm
Toda Spec C 12.5 mm,duration - 255 @ 1mm 12.5 mm, duration - 255 @ 1mm

Jun Type 1 10.9 mm, duration - 265.3 @ 1mm 10.0 mm, duration - 268 @ 1mm
Jun Type 2 12.0 mm, duration - 266.6 @ 1mm 10.9 mm, duration - 265.3 @ 1mm
Jun Type 3 12.0 mm, duration - 265.3 @ 1mm 11.5 mm, duration - 265.3 @ 1mm


Spoon Sports 11.53 mm, duration - 256 @ 1mm 11.13 mm, duration - 245 @ 1mm

Skunk 2 stage1 11.58 mm, duration 252 @ 1mm 10.9 mm, duration 249 @ 1mm
Skunk2 stage 2 12.3 mm, duration 266 @ 1mm 11.8 mm, duration 262 @ 1mm
Skunk2 stage 3 12.8 mm, duration 273 @ 1mm 11.5 mm, duration 273 @ 1mm

Crower 63400 10.69 mm, duration - 244 @ 1mm 9.83 mm, duration - 231 @ 1mm
Crower 63401 11.38 mm, duration - 249 @ 1mm 10.54 mm, duration - 240 @ 1mm
Crower 63401T 11.81 mm, duration - 240 @ 1mm 11.30 mm, duration - 237 @ 1mm
Crower 63402 11.84 mm, duration - 258 @ 1mm 11.84 mm, duration - 251 @ 1mm
Crower 63402A 11.84 mm, duration - 246 @ 1mm 11.81 mm, duration - 239 @ 1mm
Crower 63403 12.04 mm, duration - 267 @ 1mm 11.84 mm, duration - 257 @ 1mm

Integra Type R 11.5 mm, duration - 240 @ 1mm 10.5 mm, duration - 235 @ 1mm
Civic Type R 11.5mm, duration - 243 @ 1mm 10.5 mm, duration - 235 @ 1mm