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Is ms sequential


wax

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As for big injectors and poor drivability...the type of injector can be as important as the size in drivability. JeffP had crap idle with some 600CC units, but ended up going with 720's which idled as good as his 450's did years ago. Latency, opening and closing speed, can radically effect the idle quality. It it's not a quick switch, and they dribble or are sluggish, idle can go down the tubes quickly! It's not just the size.

 

I went from 503s and a base fuel pressure of 53 psi to 750s and a base fuel pressure of 43 psi. My idle is not any worse nor any richer. As you are so quick to state, "it's not just the size........." :lol:

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