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02-11-2009 09:17 PM #12
The TBI 5.0 305 Heads have smaller 1.84" intake Valves to the 5.7's 1.94" . And the 5.0 305 Heads have smaller 58cc Chambers to the 5.7's 76cc This will push your C/R near 10.1 They will work fine But you will need at Least 89 Octane Fuel .





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It would be nice if this up and down crap would cease.
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