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720 /= 740 IIRC, the 720's were modified old style injectors that were bored out for higher flow. 740's are later style pintle-less injectors, which have proven to be far more reliable than old style pintle injectors. The 740's also tend to have better idle characteristics than the 720's did. Anyone doing an injector swap really needs to be going to later style. The advent of the 300d rails greatly simplifies the process compared to the past. The 740's are roughly the same price as the later style 555's (615), so it is a matter of preference either way. Some have high HP goals, some simply prefer to have the excess overhead the 740's afford.
Petz #2 "What's the point of having the car if you don't drive it?" - Mrs. Guapo 08/20/05Jeeeesus Christ - my Dad (after a ride in my Z) 12/26/04 People have the right to freedom of expression. However, people also have the right to point and laugh- aliaZ 04/06/06 |
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