[snj8198]

I ran the 670 on my stroker BB for a bit and was pleasantly surprised with it. I tuned it with a four gas analyzer. From out of the box it only needed fattening up on the secondaries 2 jet sizes to feed up to 6,000rpm. It had great off idle performance with 15inches of vacuum and and did not stumble out on wash board or off camber situations but got terrible mileage compared to other carbs I have ran on this motor. A qjet could be tuned to do the same for a lot cheaper and better economy. But for someone who had a bit more money than time or tuning knowledge this carb seems to be a good bolt on product for the off road performance enthusiast. -steve