On homerecording.com, some tips for getting the kick drum to stand out in a mix.
Make sure your bass and kik drum center on two different notes on the bottom. Often I’ll like my kik to center at around 80Hz and the bass at either 60ish or 100-125ish.
See also this related thread with some tips on clearly separating the kick drum and bass guitar.
Try running youe[sic] Bass guitar through a compressor, with the Kick Drum inserted in the Side-Chain. The Kick drum can than duck the bass signal win[sic] it is applied.