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I'm running a 347. When I had the 289 in the car I ran a Erson 500HLH cam with 318 Duration ,244@0.50, 538lift on In &Ex. I have always run the Victor JR and the 750CFM dull feed. The heads were highly worked over.
My friends '69 ran a Erson HI Flow II cam with a Performer intake with 600 cfm on a 302 with and Auto. The heads had so mild work done I think he had 20thousands cut of them. The car ran well and was enjoyable to drive.
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