Holley Sniper vs. Edelbrock Pro-Flo 4

67Dart273 said

But again I must protest that you guys are comparing apples to oranges. The Sniper is not in the same class as the Ed system. If you want to compare systems, compare Holley HP based systems to the Ed and so on. So far as I know, only FAST? Sniper and FItech have the computer integrated into the TBI unit.

I'm not terribly convinced EMI problems are specific or more prone in the Sniper, "it just might be" that because of their simplicity and price point that more people run them..........hence more problems

EMI is a special kind of problem, very delicate to deal with

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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.