Since you’re still finalizing your 363 details and given your previous comments I’ll mention this. Give some thought to cam selection. A big cam will work against your ‘sneak out of the neighborhood’ metric in two ways. More overlap means more exhaust noise, and higher usable RPM. I have a mild cam and can have 4th pull me through the neighborhood at ~1600 rpm. That combined with Georgie’s touring pipes makes for a pretty tame sound. Cobras never sneak but I don’t have to piss off the neighbors if I don’t want to. I still get my 400+ hp up top. I love the 3.55 / .68 combo. Based on my experience you made a great choice with the True Trak.