I can't seem to find good tacos in manhattan. similar to the kind you would get at the red hook fields.
I randomly went into El Paso Taqueria on 103 and Lexington after working at the Yorkville Food Pantry (a little shameless self congratulations). I really thought the tacos were superb. I tried the beef, pork and chicken and they were all good. The place was very clean, full of locals and efficiently run by a friendly staff.
Tehuitzingo has terrific tacos that are full worth the trip to 10th Avenue. Tulcingo del Valle is also an exceptional spot.