cyl. 2/6 misfire. P0302/P0306 Codes on 2006 Ford Ranger

Starts fine, runs great under 60 mph, get over 60 and light comes on flashes and loose accerlation until light stops flashing. new plugs and wires installed. seems to use a little more gas than normal. Injectors?

Asked by for the 2006 Ford Ranger
Have injectors cleaned.
3 more answers , 1 more comment
Have injectors cleaned.
poss synicronizer is going bad where distributor use to be. very common
Is there a test for this part?
could be injectors but could also be a ignition coil breaking down under a load.