I've also been scepticle on this.
IMO, just a wild stab, i think both the 200kw and 220kw had 1.7 rockers.
If you look at the specs of the 200kw cam, the cam lift is too small to run a 1.6 rocker. That is IIRC.
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STREETBUILT RACING
'99 XHII XR8, 363w, GT4508R on 16psi, E85, C4, 910rwhp - ET coming soon!
'78 XC Falcon 500, Desert Gold, 351w, V2 on 16psi, E85, C4, 9" - 10.15@132mph!
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