Quote:
Originally Posted by Dwight Southerland
There are several 78 & 79 Aspen 318 4bbl combos that will run N. Any that have a natural power to weight factor of 14 or greater will fit in the next lower class.
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and the small valve motors can make it down to P. For the 20 HP difference, I'd be looking there but I'm not a Chrysler guy.