A XE262H or the XE274H cam would probably be a pretty good cam for ya. I'd swap the intake for a Performer RPM or Airgap, would help the performance. They have pretty aggressive ramps that are newer technology(5 years old). I believe your 272 Crane is like a 20 year old cam.

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347 Stroker/XE284H(284/296 dur, 240/246 dur @ .050), BG 650 VS Speed Demon, Ported Victor Jr intake, Jack Roush World Jr Heads (ported from 180cc to [B]195cc[/B])(upgraded to 2.02/1.60 valves) 260cfm/190cfm @ .550 lift, 11:1 comp... 450-475HP