hi, HEI distributors, what to do...well, you have two choices, buy the discounted Ebay/amazon/4wdr cheapies, and then sweat the tuning, or maybe even break your motor. or pay real money for the DUI, about 6 times the ebay cheapies I have one of each, and, I will NEVER buy one of those cheapies again. Just cheap Chinese junk, the advance is all wrong,about 50+ degrees, ok you can fix that, after buying an advance kit, maybe an adjustable can too, another $50. or so. Not such a bargain anymore.This is a stark example of "you get what you pay for", a real DUI is about $300., a Skip White, or other ebay brand is about $55-95.. Absolute junk. don't go there, unless you are one of the few people that have the time and knowledge to completely recurve that distributor and pay extra for that kit, about $40. from Crane. I bought one of the first DUI distributors for the AMC 6 way back in 99, had a small problem with it, not seating all the way, sent it back, they fixed it, put it in the car, set timing, and then basically forgot about it for 15 years, and way over 100k miles in Eagle#1 The car is off the road now, terminal rust, but the DUI is just fine, it outlived the car. i pulled the dist. out, still good, but REALLY dirty, cleaned it a little, sent it back to DUI for a cleaning/test/ lube. etc. that cost about $100., including shipping there and back. this is now a 16 year old distributor, and looks and works like new money! Again, you get what you pay for, it seemed strange to me, why pay $300. for something you can get for $59.99, well I am here to tell you, pay the $300, night and day difference between the DUI and the online "knockoffs". they are junk, and junk, and more junk! You have been warned, good luck, gz