Which spark plugs with Vortech & Boost cooler?

[WhiteSN95]

I am installing the heads, cam, supercharger and boost cooler next weekend running a 50/50 mix. I am wondering which spark plugs should I use with this combo. i am using GT40 iron heads..... also which gap should I use. I am not sure if the methanol changes anything so this is why I am asking.

Thanks

 

[94GTLaserRC]

I have stock heads (iron) and Vortech.. I run 24's gapped at 0.030"

Al heads and Vortech = 23's

Stock iron = 25's
Stock (n/a) and AL heads = 24's

RC