Review on COMP Cams 7702-1 Hi-Tech Pushrod Length Checker 6.800"-7.800" Range by Raul Fabijan

The threads were a bit difficult to turn at times, but otherwise worked well. However, depending on your head, it may be difficult to get to the knurled part of the regulator. I have a closed valley engine and the cylinder head walls are high enough that it was difficult for me to reach down with my fingers to turn the adjuster, but every engine is different. Still did an excellent job.