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these valves can provide 100% bypass for zero boost up to maximum boost and do so faster than any valve before it – Full valve actuation can be performed in 63ms and provide an unparalleled tuning window
as you really only need them whilst timing your engine or replacing a timing belt
IRP has a worldwide network of distributors who thoroughly test our products and distribute to consumers
*Bolt kit included caters for the 8 ignition coils and hardware required to install the kit
Traditional 71mm bolt spacing
4G63 VR4 EVO 1-3 Camshafts 1-TX278 HCT-M075 these valves can provide 100%272 278 11. 00mm 11. 00mm Valve Lift Suits racing engines in the 400 650hp range. 54 62mm turbo size. Great with E85 and similar ethanol blend fuels. For up to 8500rpm and 35psi boost Kelford Cams recommend valve spring KVS63 BTK.
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