[WicKed R/T]

If you plan on towing with your R/T, i wouldnt reccoment getting a m-1. The main reason is that you will want your peak torque to remain at a lower rpm. If you want more performance, but dont want to lose as much torque, try looking into a modified kegger. You'll gain some top end, but wont lose as much bottom end. Then again, i think your decision should be based on how much you will be towing and how often.

 

[WicKed R/T]

is anyone running a modified throttlebody theres a few of them on ebay that claim good flow numbers,are these fake promises?

Could you post some of these auctions?

 

[WicKed R/T]

I think a 50mm F&B would suit your truck fairly well.

 

[WicKed R/T]

The F&B is a direct replacement. The only thing you may have to do is check the throttle linkage for any clearance problems and be very gentle when swapping the sensors. You may also want take the time to clean your IAC sensor when you do the swap.