cam swap problems

**Lando99T/A** · 09-02-2010, 12:25 AM

Im putting a set of 5.3L PRC heads and a Ms4 cam from texas speed on my trans am. The only problem is I don't know the first thing about tuning. What do I do? Also I want to get rid of my cats but I can't find O2 dummy sensors anywhere. Also Does anyone know what resistor to use for a 97 Gmc 5.7L beacuse my buddy cut his cats out and we can't find any dummy sensors for his truck either. Any help is appreciated thanks!!

**seweber** · 09-02-2010, 02:51 AM

you will want to get a tune because of the head/cam swap anyway so have frost tune it for you, this is for offroad use only of course

**RyanJM** · 09-03-2010, 02:08 PM

You need a tune so just have your rear 02's deleted with the tune. As far as your friends truck you can try WS6store.com and call Mike there to see if they will work with his 97 5.7 should be fine I would think. I had mine tuned out when did my Lt's and ory and don't have to worry about the sim's going bad later.