Re: 709whp from Modern Automotive Performance!
I had a hogged out head on when I was making 39x whp at Elite years ago. My torque was pretty low as well. After a lot of reading I realized that head was killing my setup and switched to a head with mild clean up. Big difference in spool and driveability. I'd swap a stock head on there just for comparison, I bet the numbers are better.
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2009 Corvette Z51-SOLD
1992 Mitsubishi Eclipse GSX-SOLD
2013 BMW Z4-Current summer hooptie
2017 GMC Yukon-Current winter hooptie
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