Mod's that don't work.

[brad`]

they rub frozen ice (the **** that burns its that cold) on intercoolers before each run some times, its minus 60*c or something rediculas like that.

[EVL-04D]

Yeah, my mate Troy has a 302 Winny in a Rambler Hornet. His testing on that motor on a dyno showed something like an extra 1-2hp for every 5 degrees they could knock of the intake temp. Mind you it's a grunty motor running his own custom built twin Gas Research LPG Carbs (He was their Machine Shop supervisor for many years before it got sold).

[EVL-04D]

Originally Posted by EATHSV

I have Irridum plugs in my XR8 and it idles funny, what should they be replaced with?

If your plugs aren't that old, look at your leads. If both are relatively young, then I would say it's another issue, perhaps timing or fuel.
Mines only a 6, but I have run both plugs without any problems, despite being told various things like "Normal plugs will blow your engine", "If you don't use Iridium plugs, your leads will fail sooner", etc.
These days I only run Iridium plugs because I get a set of them and Top Gun leads from a mate for $130 the lot which is half retail price.