when I ordered my cats I had the option as to either have hi flo or catless

 

Huh? Did you mean when you ordered your headers? I am sure I could search to see what kinda of headers you got and what brand and where did you go them from. Just looking to save myself some time in searching and maybe some cash.

 

Well I definitely need to get this damn truck tuned and running right! Maybe I should just have someone weld some hi flow cats in and call it a day for now.

 

sorry I meant my headers yes

here are the part numbers for the catted version

http://www.afcodynapro.com/content/h...8-f150-54-24wd
+
http://www.afcodynapro.com/content/e...150-54-4wd-cat

 

Yes to the high flow cats. As Crash pointed out we run a richer mix on a forced inducted motor. A/F's in the 11's will eventually reduce a cats efficiency and in time kill it. Not sure how many miles yours have but I would replace them.
On that note if I were going to spend the money I would just move forward with LT headers as well. My Dynatechs are now 7 years old. They have been on two super charged F150's. I've put over 40k on them and have no idea how many miles the previous owner had them for. Perfect fit too!

There are other less expensive LT's out there. Perhaps some others will chime in with their experinces.

 

In your case you can inject before and reap the benefits of a cooler blower. If you had an older Eaton (pre Gen 5) you can't. The rotors were coated with a resin based coating which would be ruined by meth injection. Carb cleaners, throttle body cleaners, and starter fluid were lethal to this coating. Would desolve it in an instance.

 

I found a set of 47# injectors for pretty cheap that are Bosch. Do you think it would be worth upgrading so the 39# ers aren't so stressed at almost full duty?

I am guessing the injectors out of 07-13 gt500 would work with my truck??