Is there a penalty in TQ or HP using the SD vs. Eddy Perf RPM intake on a street application?
The RPM can be a tight fit for stock air cleaners clearing the hood on some cars, and sometimes a dropped base can't be employed.
I would assume the RPM would make more power, but a stealthy street motor's gonna spend more time in the 1500-3500 RPM range.
A little loss in lowend, but not very noticeable. Years ago I did a same day track test b/t the two manifolds on my old 440 that ran 11.40s at 117 mph in my cuda. The ET and MPH were almost identical, but the 60 foot was only .01-.02 slower w/ the Holley SD. On the street I really couldn't tell a difference. The car had 4.10s and a 3500 stall FWIW.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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