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With the boost controller off, you should see 7psi. If you're seeing more than that, you've got something hooked up wrong, plain and simple.
The Profec B is a good boost controller - I don't see any reason to sell it for another. Regardless, another controller won't help anything if it's not plumbed in right - if you're getting that much boost, something is really not hooked up right, plain and simple.
The PFC can control boost, but the Profec B will be far superior. The PFC uses the stock boost control solenoids and pills, and at a certain point you'll have to start playing with pill sizes to prevent spiking. Screwing with pills IMHO isn't boost control, it's the dark ages.
__________________ | Dale Clark - RX-7 Bad-Ass
| '94 RX-7 R2 Brillant Black - Building the Perfect FD
| Go faster with stripes!
I remember reading that a number of people (FD owners) had problems with the newer Greddy Spec B II EBC. The older version, or the type S (same thing really) seem to work great. It is a nice and simple unit that works.
'93 RX-7 Base (GT3574 track toy)
'74 Triumph TR6
Dale I'm not getting those spikes, the problem was the boost controller wouldn't giving me boost. Once I disconnected it and hooked up to stock lines, everything worked/pulled great. It's spiking because I don't have any kind of controller hooked up, not because of the controller.