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Austin Healey 3000 engine upgrade

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J

Jaghealey

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I own a decent AH 3000 BN7 and want to upgrade the engine power to BJ 8 spec.
What do I have to change in addition to the HD 8 carbs and the camshaft?
Do I have to change the head or intake or exhaust manifold? Can I open up my Intake manifold from 1 3/"4 to 2"?
Any recommendation which other bolt on modification I should add to the project?
 
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