it could very well be detonation, the guy used the motor in a 70 c-30 dually to haul tractors and farm equipment around delivering and picking them up from his shop. He said it ran great and pulled good, but it burned a Qt of oil every 50 miles from the day it left the shop. He said he only ran it a couple weeks like that and then pulled it out. I wish he hadn't waited so long.
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Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84
ralleys and 31/10.5s
Angel girl: 67 Cutlass convertible
330, 3spd stick
Greener: 90 GMC Jimmy
350/auto
Chad Stephens
Orleans,NE
no name yet: 72 442 under serious construction
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option
00 Dodge 2500 4x4, 24V cummins, 5 speed
Chad
South Central Nebraska
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