302 intake manifold

Iam upgrading to a4 barrel intake ,can I inprove cooling by going with a newer intake with the rear water jackets or should I stay with the rear jackets blocked off. Thanks for now.

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intake and 650 cfm 4V Endurashine. I've had no problems.
--
Spike
1965 Ford Mustang Fastback 2+2, Vintage Burgundy
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