i have a b20/vtec with a b16 head, just with bolts ons, i was wondering what spark plugs i should run? right now there are some crazy bosch with 4 tips on it.. and since the time is coming to change them, i figured id ask all you gurus what kind i should pick up? also what octane of gas should i use for my set up? my friend just finished his ls/vtec and was shocked that i dont always run 91 octane.. im in cali so 91 is the highest..

any help is appreciated
thanks

 

i'd get some NGK sparkplugs and 91 octane, i think you'd be fine...

 

arent there alot of different kinds of plugs though? like hot and cold and stuff?