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.
1 ConcreteNetwork.com provided an overview on what most concrete flooring jobs would cost. 2  They noted that the average can be anywhere from $2.50 to as much as $30 per square foot.owever, with a pinch of polish and a touch of color, a boring slab of concrete can quickly turn into an eye opener. The cost of concrete floors will depend on the style that you choose for your home, the size of the room and the professional contractor performing the job.