It is clear that Pontiac did not want the 455 HO upstaging the Ram Air IV. Seems the 4 had all the goodies. Imagine the 455 HO with the 2 piece aluminum intake and the round port heads/with RA exaust manifolds. No substitute for cubic inches, unless, of course, you twin turbocharge it.
Anybody here have any idea on the true HP numbers on a 455 HO or a RAIV, not what was posted by GM to get Muncie or turbo-hydro to guarantee the transmissions behind the motors?
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Jim
Last edited by Ummgawa; 02-11-2006 at 08:30 AM.
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Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
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