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Old 05-05-2023, 08:48 PM   #1
1967GMCC20
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Join Date: Apr 2022
Location: Medina, Ohio
Posts: 224
Putting miles on 67, 402bbc VS 67 V6 305E

Amazed how much better this GMC drives after pulling 305E and upgrading to 402 BBC. conversion.

Drives like a car, smooth, V6 was unique, but seriously under powered.

305E V6 7.5mpg. 170hp

402 bbc 12mpg. 310hp
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