FYI if your ruger 10-22 is jamming only use ruger magazines!! Aftermarket versions have too weak of spring tension especially in the 25 round mags! Also the oem ejector arm in the receiver that grabs the shell lip is too soft resulting in the tip/edge to blunt after only a hundred rounds, replace it with a hardened version.
Over the years I have swapped quite a few points distributors out for EFI versions. Every engine picked up power throughout the rpm range with increased fuel economy plus started and ran much faster...even after sitting for several months!
Variable valve timing is a great thing for power and fuel economy! The problem is manufacturers making inferior parts and consumers doing 7-10k oil changes. VVT started back in the late 1999 area and only started having massive failures once manufacturers like ford dialed back quality and cut corners.
We currently should be using lifter and cam less cylinder heads at this point!
Over the years I have swapped quite a few points distributors out for EFI versions. Every engine picked up power throughout the rpm range with increased fuel economy plus started and ran much faster...even after sitting for several months!
Variable valve timing is a great thing for power and fuel economy! The problem is manufacturers making inferior parts and consumers doing 7-10k oil changes. VVT started back in the late 1999 area and only started having massive failures once manufacturers like ford dialed back quality and cut corners.
We currently should be using lifter and cam less cylinder heads at this point!