Wow, that's a big difference with just an induction change.I guess the EFI intake is restrictive? or was it just detuned with the fuel/spark mapping to help with street manners?

I would think a guy could start with a core 5.7L and build it up and come in under a 392 crate motor price tag pretty easy.

Thanks for the info Zippy

Last edited by 2734bbl; 08/22/11 07:05 PM.