Well, lately the FD has been running a little funny.

First of all, it's running a PFS Purple box with a Profec. Tuned REAL rich (11:1 afr @ 12 lbs @ sea level, I'm at 5200 ft.) So I think the plugs are getting used and abused. The 3k hesitation is there, but that I'm feeling is more of a miss at all RPM, crusing speed. What I noticed is that when I'm really on the throttle, it screams, but when I'm at one RPM, or with light-throttle application, I'm getting a bit of hesitation. This happened all of a sudden, so I assume it's from the plugs going bad. It hasn't gotten any worse, and my AFR's still peg out 10:1 on the narrow-band meter. Between my walbro pump, the reman engine and the PFS box, I doubt it's fuel.



Does this sound like a plug problem? The last time they were replaced was nearly 20,000 miles ago.

In the time that you spent typing that you could have just changed the plugs and found out if it helped. https://www.nopistons.com/forums/pub...R#>/tongue.png

haha! Yeah, I'm bored at work.

Bah, I clicked on this thinking he was shopping for hair implants..........

Thanks for the help fuckers. Can someone at least point me to a source for plugs? Also are those HKS iridium deals any good?

Stop at a dealership on the way home. Your problem is likely more about fouling the plugs over time, so why pay extra?

Stealership! Ugh! What about NGK's from Vato-zone?

I've never found anyone other than the dealer that stocked rotary plugs. Maybe it's different in your area.



I did have a shop order me in plugs, had to buy ten and they all had to be the same. Price per plug ended up being about the same.

Dizzo'h!

I called my local Advance Auto parts and they have 14 NGK trailings and 10 NGK leadings in stock at $5.48 ea.