It is normal for you to feel less "push" in the summer due to denser colder air in the winter. It's also the reason why larger then stock intercoolers are a good idea if you plan on pushing past typical 13lb stage 3 levels.
IMHO you souldn't be boosting at all if you know you have a failing injector esp. if it's #6. You will damage your motor.
Bernie Bilskiberniebilski@cox.net 1995 Nissan 300ZX TwinTurbo in Cobalt Green 1997 Nissan 240SX SE in Ultra Red (some assembly required) 1995 Nissan Pick-Up XE in Super Black ZCCNV #390 ~ ECZA #368
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