Quote Originally Posted by spfautsch View Post
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I discussed the subject in detail with Lloyd last year. All the research we could gather indicated that the XFI lobe design requires a lot more spring pressure than Comp specifies to control the valves above 6000 rpm. So if I go with softer springs the cam has to go. It's a really unique grind - basically capable of 480 crank hp in a 350/5.7 while having an idle lope that's less "conspicuous" than the GMPP hotcam.
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OOI, What specs have you got on the cam?
I went with the high lift version of Lloyd’s 223,230 on a 112
Lift I think is something like 0.598 0.610
In a 383 it does not sound very lumpy but I need to pass emission sniff test which it does no problem so I know I can go bigger if needed ��
Mitch