Hands down 17749s are the best quiet choice out there. It's my go-to.
You might be able to squeeze a longer case than 20" under there but you have to check. I don't think you need to, the 20" ones are pretty dang quiet.
I ran the Goerlich for a while, liked them, but went back to STs.
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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
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1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
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