Just wondering cuz i havent seen a power pully set for our 420A's. Also i have seen plenty of UDP but does anyone know of a Balanced UDP cuz i wanna boost one day and i have heard bad things about boost high and not having a balanced UDP. thanks for any help
Kevin

1997 Dodge Avenger I-4 5-Speed
DreamSpeed Cold Air Intake,AF/X Under Drive Pully, ES Motor Mount Inserts, MSD DIS2, MSD Coil Pack, MSD 8.5mm Wires,Aluminem Flywheel,Spec Stage1 Clutch,Crank Scraper, Quaife LSD,Airmass 4-1 Headers, Test Pipe, Bosal Catback,B&M Short SHifter(50%),Symbroski Shifter Kit, Grounding Kit, Solid Front Motor Mount

AFX is what every one here usually uses. Im pretty sure that the guys running boost have no problems with them.

myspace.com/coastiecobb

obx makes a power pulley set.

this if from their website:

OBX Precision High Tech Power Pulley Kits are perfectly CNC machined and well balanced to increase horse power after installation. Harmonic balancer are also provided to ensure proper balancing of the pulleys during installation. Each kits includes 2 oversize performance racing belts, 1 alternator pulley, 1 power steering pulley.

dsm/mitsubishi service manuals https://www.mediafire.com/folder/5k14qlaulb9s1/dsm_mitsubishi

service manuals(my whole collection) https://www.mediafire.com/folder/ac51jwwa3g1n1/automotive_manuals

all UDP's are 'balanced' but most aftermarket crank pulley's don't have a harmonic dampener, which just helps with NVH, and doesn't harm the motor if it's not there.