The price difference between a sniper and the Edelbrock is much less than the Edelbrock and a holley hp.
Sniper goes from $1000-1500. Edelbrock is $1700-1800, and the HP kits are $3400. With the addition of spark control ($500) you're at the same price point. In addition, the EMI from the stock charging and ignition system is enough to have an effect, it's been noted by numerous users, and electrical noise certainly wasn't a consideration like is required today.
The larger install base is certainly something to consider, but lack of any basic considerations for EMI in the factory harness are hard to overlook.
