No doubt, I just shake my head when I see people kneejerk to the loudest, least effective changes like larger/louder exhaust, that will do absolutely nothing to improve the power of a smog-choked '73 455. Steeper gears will help some with off the line acceleration, but isn't going to gain him much of anything when he punches it from a roll. These are kneejerk, inneffective modifications that do little or nothing to serve the end goal of more power, but they make the car less enjoyable to drive and potentially less reliable, so what I advocate for is a real plan of attack instead of just throwing on some easy stuff. When I put my Pontiac together, I had a solid plan and put together a good solid torquey motor that makes fairly impressive power/torque, yet still has a smooth idle and good daily drivability, and it runs through stock style 2.25" duals with stock style mufflers. Smooth idle and quiet exhaust, but loads of lowend torque, good top end and very fun to drive, with 3.08s out back and tall tires that allow it to live comfortably on the freeway. Mid-3 gear ratios, big exhaust with stock manifolds and a smogged out 455 is a very poor combo, frankly. Totally ineffective.