Ford messed up the gapping on the OEM plugs and this is part of the problem with the Ecoboost shudder at 55-60mph. The spark plug gaps are all over the place from. 035 to. 046 on just one members engine.
At the time of publication, the average cost of concrete for a 400-square foot slab, the typical size for a two-car garage, ranges between $583 and $637 or between $1.46 and $1.59 per square foot. On average, contractors will put in about 13 hours of labor to finish a two-car concrete garage slab.
Concrete Roof Tile Cost. Concrete tiles are expensive. They generally cost $400 to $900 per square (one square equals 100 square feet). High-end concrete costs as much as $1,000 per square.A typical two-story home has about 1,500 square feet of roof, bringing the total cost for materials and installation to $6,000 to $15,000.oncrete Roof Tile Cost. Concrete tiles are expensive. They generally cost $400 to $900 per square (one square equals 100 square feet). High-end concrete costs as much as $1,000 per square.