Need help building sub box

[Bigcykes209]

Ok guys I have some Alpine bassline 10s.i wanna build a ported enclosure.my dimensions are 34" width,20" length,14" height.i want to have at least 3.25 cu ft total.tuned to about 35 hz.i am a beginner but I can follow plans.powering with Alpine mrv m500.so my RMS of subs and amp match.enclosure is for a Pontiac Sunfire 2003.thanks