Like many of those giving a '50s car a street rod redo, Jeff Abbott decided to keep the original engine in his '54 Oldsmobile Holiday 98. After all, there's really no need for an engine swap—the ...
The above figures were observed while cruising near sea level with ambient temperatures of 75-80 degrees F. Final axle ratio was 2.78:1, with a turbo A/R ratio of. 81:1. With over 180,000 miles on the ...
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