Have a nx wet kit. Looking to run a 150...what else should i pick up for a safe install..so far i have a, Bottle Heater, Window Switch, Fuel Pressure Safety Swtich, Throttle activation Switch, NX Purge.

Upgraded fuel pump? what else?

Bolt on 99 WS6 m6..with 65k

 

Walbro 255
Blowdown tube

Optional: Not really saftey, but nice to have.
Purge
Remote Opener

 

is the blowdown tube required for the inspection at the track?

 

Blowdown is required at some tracks but not all.

 

NGK TR-6's

 

Sticky tires!

 

ive had the ngk plugs for about 10K miles now..should i change them again before i spray?

 

Yes..
Change them and make sure you have the proper gap..

 

And once you run on the giggle, pull them and inspect them. All cylinders, not just the easy ones.

 

 

ya in fact I just did mine.looks good.