Interesting discussion. I've just added an eco-friendly add-on to my 460 big block.... It's a beast which sucks gas and belches fire. Ok that's a bit of an exageration. I'm adding the only thing that really matters to me. It's an evap canister. And it's only on the gas tank vent. Nothing fancy. I'm just doing my part to make the planet greener and helping to solve global warming "crisis".
Thanks ya'll
Xack