Just a question about spark plugs.
The engine I have is a 12a 6 port and its had mild porting I think , the spark plug I think it should take is a BUR9EQ is this right?

PS the eye brow is still on the plug holes.
Stu..

Here's a link to NGK specs for plugs:
http://www.ngk.com.au/sparkplug.php#

Generally the BUR series plugs came standard in the turbo engines -
13BT and 20BT, BUR7 or 8 EQ(leading) and BUR9EQ(trailing).

In my 13B secondary bridge, I'm running B9EGV. If it was an everyday driver then I
would probably run a slightly hotter plug - 7 or 8(leading), to stop them fouling.

There are lots of different plugs to suit your car, from 1 to 4 electrodes.
Take your pick.

Thanks for that. I need a long plug because of the eye brows on top of the holes.