Hi all never heard of a MAF can someone tell me what it does an where I can find it on my 5.0 302w NC fairlane and where off the plemum chamber the vacuum line that goes to the MAP sensor is as mine is missing

MAF is connected to aircleaner ..
It was only the early 5.0's that had BAP sensors.. Same as MAP but not connected to manifold. They read barometric [atmo] pressure...