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Although you can't see them here, AFR's Tony Mamo recommends the company's as-cast heads with the optional CNC bowl-blend. "The ports are still effective," he tells us, "but the CNC work is the same as in a full port job, which gives more low- and medium-lift flow." The chamber work costs $300 extra, but the gain is about 30 hp--quite a deal. A pair of 305cc heads with the bowl work go for $2485.