I have a healthy set-up sitting in my room. World Product(iron) 2.10 intake/1.6 exhaust 1.550 solid roller springs titanium retainers full port and polish to fel pro 1206 gasket 58cc chamber . I was told they flow around 320 cfm @ .600. Doug Herbert Cam is 303/310. @ .050 264/272 .630/.627 with a 1.5 rocker small base solid roller.With stud girdle, guide plates and 7/16 studs email is xfacedownx @ gmail.com . I'm not using them and don't see myself using them anytime real soon.

$1000
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