the second set (exh side) were to burnt off any unburnt fuel for use when the vehicles were fitted with catalysers, it was for emissions rather than performance (unlike the Alfa twin spark engines). when i had a car with the 8 plug ET setup, i went colder on both (from 5s and 6s to 6s and 7s) when i turned the boost up.
__________________
Racing is life. Everything else, before and after, is just waiting.
- Steve McQueen
|