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.
The average minimum cost per square foot of concrete slab is $1.36. The average maximum cost per square foot of concrete slab is $1.88. In addition to the concrete used to form the slab, homeowners will face some additional costs associated with this type of residential project.Supplies such as the wood used to create the forms for the slab add an average of $3.75 per finished square foot, which is much more than the cost of the main material.he high supplies cost is due to the rebar used to add strength to the slab as well as the gravel that is laid underneath the slab for stability and enhanced drainage. Installation costs for a concrete slab average $65.50 per hour.