question for head swap people

[CanadaStang]

After the head swap, did you find that your a/f ratio was richer or leaner? Or did it not change? If it did change, what other mods have you done?
Sorry for being a pain, but I just want to do as much research as possible. I'm starting my head swap on Monday.

 

[CanadaStang]

Bump

 

[crazystang05]

saw you had aluminum drive shaft. How do oyu like it and can you feel a differance in how fast the rpms go up

 

[mrvax]

Although I had no pre-swap a/f numbers, post swap there was a few dangerously lean areas. Nearly 15:1 at some points. Had Tim reflash my EEC. Check my sig. MUCH cheaper than a dyno tune and it will adapt to further mods. I have it setup for 13:1 now. (He also advanced my timing and turned off my rear cat sensors.).

 

[CanadaStang]

Although I had no pre-swap a/f numbers, post swap there was a few dangerously lean areas. Nearly 15:1 at some points. Had Tim reflash my EEC. Check my sig. MUCH cheaper than a dyno tune and it will adapt to further mods. I have it setup for 13:1 now. (He also advanced my timing and turned off my rear cat sensors.).

Eeep!! Thats not good I'm keeping everything else stock[ exhaust, intake] I wonder if I would still have lean issues?
I had done a search earlier, and noticed in one of your posts, you said you had to send away your eec to get the flash. Could I just order a custom chip, if I tell the supplier what mods I have. [Mac CAI , but I figured I'd take it off and put the stocker back on,to make it easier for them to make a chip]or would it be wise to send my eec away for a reflash?
Thanks again, MRVAX, for all your help!!

 

[CanadaStang]

bump

 

[CanadaStang]

Ummm, any other thoughts?

 

[CanadaStang]

Anyone?