Quote:
Originally Posted by Stielow
I don’t have any data other than “looking X guessing”. I would bet the stock LS7 Camaro Z/28 Tri Y headers will make more power. The GM Powertrain team did a lot of work on those Z/28
Manifolds to get over 505 HP stock.
I have made over 900 HP with the Holley exhaust manifolds on a blower motors.
Both are good. The Holley’s fit the “look” of the engine bay better.
Mark
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On season 1 episode 15 of Engine Masters they tested the Holley manifold against a mid and full length on a LS.
But for those that don’t have the capability of watching.