Originally posted by DemonSVT:
Originally posted by Bronco_II:
IIRC the SHM headers had a much broader torque curve increase (aka more area under the curve) than the MSDS headers.
That is "what has been said" however the simple truth is no one ever dyno proved any difference between the two. Matter of fact there are 2 rather low dynos with folks using SHM headers. (there are few dynos with SHM's btw)
I don't think SVTPete's rev-limiting "Mustang" Dyno 202.4hp, 177tq numbers on a untuned buggy 3.0L SVT Hybrid w/SHM long tube headers would be concidered low numbers. Some 3.0L's don't even have numbers this good on inflated "Dynojet" pulls 
Scott
2000 Contour SVT #1464
Mustang Dyno: 171.6hp/145.3lb
Dynojet Dyno: 171.1hp/148.9lb
1989 20th Anniversary Turbo T/A "Indy 500 Pace Car"
#1376 of 1550 All Original, 46k with a few mods 
2002 F150 SuperCrew
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