asd_gst
15+ Year Contributor
- 936
- 1
- Mar 31, 2008
-
port royal,
South Carolina
ok so i think i foud(sorry if i spelt it wring) out my plugs, when i get into high rpm any gear i get knock, never has before, i have a walbro 190 fuel pump, stock injectors, joosten chip, 14b with ported evo3 turbine housing, im running 16 psi, my plugs are the ngk bpr6es (not sure if thats the right order of the part number but its all the numbers)
plugs gapped at .028 should i get teh bpr7es? and what should i set my gap at?
plugs gapped at .028 should i get teh bpr7es? and what should i set my gap at?

what is a "speel".
, got the 