To be frank, I'm totally confused with heads.
What make one head better than another?
Not limited to just Edel vs RPs.
Is it purely a flow rate thing or is there more to it than that?
Vale size - Is bigger always better? Intake vs Exhaust sizes?
I'd have thought that there are 4 or 5 main choices in aftermarket heads for a cobra.
* Edelborck's - the almost standard default option (and seemingly in several guises, I can't work 'em out
).
* Robert Pond's
* Shelby's
* Others
As far as my limited research goes, the above, all have standard exit ports.
* Blue Thunders - which are meant to be the top dog.
But have raised exit ports which require extra work for headers & clearance.
* Then there is Barry Rs yet to be produced/released new heads (as reported on the FEFORUM). Preliminary data and all reports suggest that they also are meant to be pretty handy...
332-428 Ford FE Engine Forum: More info on the Survival FE cylinder head
* And the Kirkham billet version... also not yet finalized or available.
I'd love it if someone could map out the hierarchical law of the jungle that ranks heads.
