Under chassis is the only way to go, if you want a good look under the hood. The only way I would ever use inner fender well headers ?? On a 'all out race car'. I would never cut my inner fenders for a set of headers, and if you do, then you need a football field to turn around in. That's a little exaggeration but if you've ever had them on a A-body, you know what I mean.
And if I recall correctly,,,,,,, there was a article in Chrysler Power magazine a few years back ,, where they put they're DART 'mule' 400 cu in stroker motor on the dyno with the inner fender well headers, and then a set of under chassis headers (cppa headers), and the motor produced more horse power with the under chassis CPPA headers ! ! Best of both worlds.
