normal?help

when I race I noticed that on first gear from 3500-5000 rpm I here a soft ticking noise(sounds like when you red line...it kinda scared at first so I go easy on first gear, but so far nothing has happened. it only happends on first gear.is that normal?. I mean car runs strong. someone told me maybe it was a manifold going bad.oh I am also running 5w-30 mobile1 synthetic oil. after 1000-2000 miles my oil dip stick marks that I am 1 quart low and low oil light comes on. is also normal?thanks!