Are some spark plug wires better than others?
The core largely dictates the performance of the spark plug wire. Again, some cores offer low resistance while others provide better EMI/RFI suppression. The most common types of spark plug wire cores are as follows: Carbon Core: This is the common OEM-style core used on most modern vehicles. via
How many ohms should a spark plug wire read?
Simply attach or hold a meter probe on each end of the cable and read the total resistance on the meter. The Society of Automotive Engineers suggests the maximum resistance should be 12,000 ohms-per-foot. via
How much HP does performance spark plugs add?
These 'massive' gains of one or two per cent generally won't be exceeded, even if you're replacing really old and worn spark plugs for new ones. In this case, your essentially just restoring your car back to its peak performance. via
Can I use a longer spark plug wire?
The resistance of a longer wire isn't really an issue. Unless you were mounting the coil at the other end of the vehicle. Ideally you want to keep them as short as possible. via