bottom line Dan is No you can't have it all,
that's what the OHC 4-cam w/phasers is all about, basically they can change camshaft LSA on the fly. the new motors can see 'cam swap' improvements with only a plug-in tuner
here's a couple reads on vintage stuff if you have a minute, not sure if either of these were ever offered for 351C, too early?
http://speedtalk.com/forum/viewtopic.php?f=1&t=1545
http://www.jalopyjournal.com/f...-the-cam-a-go.84631/
Dodge Viper variable LSA camshaft
http://www.thehemi.com/news.php?id=20080211-1
Rhodes type leakdown lifters are another early/poor man's variable cam timing, but the opposite way of what you're looking for in that they smooth the idle & rage the top end
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Come On Dan! give the Cobra-Pence cam a shot!
I was gonna say Group Buy but I want a flat tappet
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