philosophico, while I considered that the SRT-6 might well run somewhat rich - which even without putting your foot in it - their fuel consumption isn't all that great and no doubt explains the soot. My Ltd's exhaust ends are quite clean by comparison.

I'll just add here - if I can get my Sata spray gun to quit coming out with 'flutters' (yes, correct name) and I can finish the Ltd's hood, it will be up for sale.