It's been several years, but I used to hear bad stuff about them. Lots of problems with repeated breakage. You will rarely see anyone in the serious racing crowd pushing big horsepower in front of a B&M converter.
I'd second getting a nice converter. Price if nice, but strength is better. I'd bet B&M's run fine on near stock cars, but with a big 460 sitting up front, I'd not risk it.
--nathan
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'91 GT, Coast 347, 9.5:1 compression, full intake, Wolverine 1087 cam, exhaust, Keith Craft ported Windsor Jr. Irons (235 cfm intake, 195 cfm exhaust), AOD, PI 3500 converter, Lentech valve body, 3.73's (4.10's in the works), and Yokohama ES100's out back.
Daily Car: '04 Infiniti G35 Sedan 6MT
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