just use a good set of champions and close the gap a bit and you will be good. i have been running a 125 zex shot like this and no issues, i can't remember what i closed them too but i have about 40 passes on them and they still look perfect.car runs perfect.unless your running a big shot kit 125 and up i would not worry about it. allot of the forums say you have to but i just listened to my dyno guy and it seems to be good.
ran autolites (23s i think, whatever is 2 steps colder) on a 91gt with a 125 shot. didnt retard the timing, didnt do anything special and never noticed a single issue with the car. despite what some guys seem to think, a 125 shot really isnt a lot. you wont notice much or any difference IMO.
all opinions expressed are that of my own and in no way reflect the views or opinions of stangnet or any other jackstand race machine driver
all opinions expressed are that of my own and in no way reflect the views or opinions of stangnet or any other jackstand race machine driver
Colder plugs aren't going to cost power and don't need tuning changes to be used in a road-going engine. The only downside is that they will tend to accumulate deposits faster than the correct heat range. Just don't use platinum plugs with a power adder.
IMO, there's nothing wrong with Champions or any of the other big brands for that matter.
IMO, there's nothing wrong with Champions or any of the other big brands for that matter.