Back in mid 90'2 when I recruited evryone took Nuc test, but you needed a AFQT of about 65 to qualify by line score. Reality is if you get a QT in low 60's you likely are not strong reader/math doer on teststhus likely to have problems as a Nuc which everyone here will atest to as a progranm where you learn the fine art of test taking (over and over and over). I would study using the guides and really work on the math and reading comp, as for the nuc test if you have had ALG1 & 2 CHm1 and PHY 1 review your notes!!!!
Good luck
Rob