Yeah Designer, started with flowmasters and a CAI but wanting to move on, ive looked into the hipotek throttle body just never had time to order it. thats probably what im going to go with. Also what all do i need to change axle gears?

 

What gears are you currently running?

 

get a currie 9 inch ha

 

I have heard going to a 70mm from a 68.5 yields just a 2-2 increase or so, but burns more fuel than what would make it worth it. I imagine a custom tune from hemifever might make those gains higher or If someone were boosting I could see needing as much flow as you can get.

 

uhh i never really checked but what ever is stock with 07' v8 mag.

 

lets see, I went with the 206 cams, and a hemifever tune, 70 mm throttle body, 4.10 gears, 3 inch single catback, 2800 stall, 125 shot of hemi nitrous, larger y-pipe, 180 thermostat, and I relocated my iat sensor, k/n cold air intake. thats about it,.

 

I would say your running 3.55. Im running 3.92 and get around 16mpg. But with the addition of he hipotek an unexpected side effect is 17mpg mostly highway.

 

I would agree, most likely 3.55s