Cam specs here:
http://www.camshaftshop.com/camshaft...3-4g63-vr4/30/
Spring info:
Kelford Racing, High performance valve spring set (with spring base and titanium retainer) to suit 4G63 DOHC engines, EVO1-EVO9. The valve spring is of ovate wire beehive style, the benifit of this is superior valve control therefore allowing more rpm, boost and reliability versus a parallel spring design. Use the factory spring base for Street/ Strip applications up to 8000rpm and 23.5lb(1.6 bar) boost, over that use the supplied spring base to incerase seat pressure to 110lb (50kg)
Threaded Mode