The new 5.0 appears to be putting up some really big numbers on the dyno. I think it must be from improved airflow from the heads. I was thinking of eventually doing a Boss 5.0 block or a sleeved big bore aluminum block build in my 2003 Cobra. Will Coyote heads work on a Boss 5.0 block? If not, will a good set of ported 4.6 4 valve heads flow as good as coyote 5.0 heads? If not, would it be better to just put a blown coyote in my cobra versus doing a 4.6 based build? Thanks for any info about this?
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