More gear drive suff

sorry guys for bringing up this chrud again but im wanting to put a gear drive in the 440(MILODON) my Q is will i hear it in my car i love the sound an i dont want to blow 500 bucks if i cant hear it!the motor is a 30 over 69HP 440 with a MP557 cam in it with 1.5 harlin sharps!pretty simple build is there anything that effects the sound in a car like cam size or anything i just must have the sound!( an no im not putting a blower on her dont hav the cash)Thanks guys
MIKEY