RPM Extender question.

[The Hitman]

Do you guys think 12.75 is too rich for my car? Should I back it down a bit?
I'm going to check my plugs here in a few when the snow storm clears.. when some of you guys had it where did you get the best results?

 

[GTJake]

From what I've seen the extenders aren't always that accurate. People have had them at 12.75 or something and then on the dyno they're at 13.5:1. The only way to know would be to get on a dyno with a wideband.

Jake

 

[Slow5.0]

The Himan hom many HP/torque you have on dyno and what you run on 1/4 , we have allmost same mods except
FRPP 65mm Throttle Body
Pro-M 75mm
King Cobra Clutch
Kirban AFPR
TMoss Ported Lower

 

[The Hitman]

I guess it's just that time of year when I feel like my car is slow. Just wondering if I could turn the dial a bit more or not.
BTW: The nearest dyno is over 100 miles away and it's not open when I'm not at work.

 

[jwalker]

your FPR will play alot on the air/fuel ration as well. I think I have my extender set at 12.00

 

[The Hitman]

I think I may crank mine down to 12.50 or 12.25 and see how it does.. and check my plugs when this crappy weather goes away.