Quote:
Originally Posted by stevesrt8
even the modded folks are having trouble finding the power promised by the big TB's.
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They were yes that is correct, however RDP (dynosteve) has been able to see positive gains with a 90mm addition on a few 426's he has tuned. Nett gains are ranging from an extra 20-40hp.
On stock motors with no other mods and tune - NO WAY IMO!