1967 Chevelle used a dimple because the brake booster was increased from 9" in '66 to 11" in '67, BUT, that looks much bigger than factory ??
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Mitch
1970 Chevelle SS
1966 Chevelle SS
1967 Camaro ss/rs
1938 Business coupe, street rod
2000 FXSTS, original owner, 13k miles
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