Re: 70 1/2 z/28
The early double hump heads do not have accessory holes or those flat areas. After 1969 they do. Don’t know the correct casting number but it’s pretty easy to get that info and check the heads. Intake definately should be the hi rise GM aluminum. Jerry McNeish is the man to talk to about the authenticity of that car.
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Rich Biebel
S/C 1479
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