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.
Minimum: $401 per 125 square feet. Maximum: $427 per 125 square feet. Concrete floors are able to withstand a large amount of traffic, and because of that, they are often installed inside of public buildings. Along with purchasing pre-stained concrete slabs, homeowners can also apply stains to existing concrete structures. This allows them to improve the look of their current concrete floors or driveways in a fast and inexpensive manner.