I have a bolt on 89 and just installed a nx wet kit with a 125 shot. I got a set of plugs that are one autolite platinum a26 and was told the higher the number the colder the plugs, do you guys think I should go to autolite platinum a27 as these are tne next set colder? And my timing is set at 14 degrees, with the 6al should I go to 10 degrees or to something even lower?

 

1 range colder should be fine. and rule of thumb for timing is 2* for ever 50 hp of shot so 10* should be fine

 

what bvh said

+make sure fuel system is up to par.

 

I am not a very big fan of platinum plugs for a nitrous use.

Keep your plug gap around .035 also. But with having the 6al its not that critical you close the gap, it should be able to handle it.

 

I too hate the platinum plugs.I blame the parts stores they push them like crack....

 

Platinum plugs with 4 electrodes and a squiggly center are da best mang!

 

Ok thanks guys, I will return the plugs and get non platinum.

 

your a smart guy

 

get a regular autolite plug and the number should be lower not higher,and you definatly do not want a plug with extra electrods,its extra metal to heat up causing detonation easier,regular autolite plugs worked for me for years with a 125 first stage and a 250 secondand 375 third

 

For Autolite plugs the higher the number the hotter the plug. With NGK plugs the higher the number the colder the plug. I am running autolite 24's on my 95 stang with a 150 wet shot. I am on my 7th bottle now with a stock bottom end, stock head, stock cam, pretty much intake/headers/exhaust and a diy tune... lol