Best Headers For My New 74 Dart Sport

Not sure of port size , but you'll need a good shop to do the pipes from the collectors if you want flow and clearance , I have yet to hit them . In all the tests they made as much power or close to all other hedders . Thinl it was 7 or 8 hp less than tti , at least they are better than manifolds and better than the Hookers I replaced .