A lot of the injector business is relabeling-- there are only a handful of manufacturers. There are several different designs of injectors (ball, disc, pintle, etc.) each of which offers different spray and response time characteristics as well as some styles being more resistant to clogging.
There is also high and low impedance designs, the high impedance injectors being the older technology. The low impedance injectors with a "peak and hold" driver offer better injector response especially at higher operating pressure and are capable of shorter operating pulsewidths (i.e. they will idle better, which is very important as injectors go up in size and idle pulsewidths get shorter.)
As far as who you buy from... specialty vendors will test all their injectors and group them by actual flowrate so you get a well matched batch and they will also visually verify spray pattern and performance over a wide operating range.
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1969 Chevelle
Old setup: Procharged/intercooled/EFI 353 SBC, TKO, ATS/SPC/Global West suspension, C6 brakes & hydroboost.
In progress: LS2, 3.0 Whipple, T56 Magnum, torque arm & watts link, Wilwood Aero6/4 brakes, Mk60 ABS, Vaporworx, floater 9" rear, etc.
Last edited by Blown353; 01-10-2007 at 05:27 PM.
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