Neither do I.
If anyone came come up with any data, I'll be surprised.
05 SRT4: DiabloSport, PTP Check Valve, DCR oil modifier, 160-tstat, K&N, Alky Injection, needswings 3" dump, Fm WGA and Stage 2
1993 Corolla DX 1.8L (373,000 miles daily driver)
1970 Buick Skyark GS (Just a buick 350)
2006 F150 (Eh, 4.6 V8, but has FlareSides)