Plugs for rb20det redtop eccs

[Rolls]

Ive got an r31 passage with a redtop rb20det eccs engine, now its running about 10-11psi boost and ive read loads of conflicting info on what plugs to use.

Now I dont see money well spent in forking out for iridium plugs, so from what ive read I want copper plugs with a heat range of 6 and possibly gap them to .8? or just leave them?

where would I find the part numbers for something like this, eg brands etc.

Also before someone says it ive searched but yeah I dont know what to read and in the end im still lost

The owner before hand didn't maintain it very well and its having some cold start intermittant idle problems, so Im gonna start with the basics as its got its 100k service coming up soon so may as well do as much of it myself as I can.

[Rolls]

Ive got an r31 passage with a redtop rb20det eccs engine, now its running about 10-11psi boost and ive read loads of conflicting info on what plugs to use.

Now I dont see money well spent in forking out for iridium plugs, so from what ive read I want copper plugs with a heat range of 6 and possibly gap them to .8? or just leave them?

where would I find the part numbers for something like this, eg brands etc.

Also before someone says it ive searched but yeah I dont know what to read and in the end im still lost

The owner before hand didn't maintain it very well and its having some cold start intermittant idle problems, so Im gonna start with the basics as its got its 100k service coming up soon so may as well do as much of it myself as I can.

edit ok after some more searching, namely r31skylineclub i came up with these

NGK BCPR6ES or BCPR6ES-11

as my car runs rich no doubt they will probably foul after a while so no point forking out for platinum or iridium

does anyone know what the gap of the BCPR6ES are? ah well ill sort it out, i think my coils are a bit shagged as well so the .8 should help out