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I have a 351W with a 650 Speed Demon, mechanical secondary. Right out of the box it was fine. Easy to tune and adjust. Most, if not all, carbs come a bit rich and mine was no exception. I brought my jets down about 4 numbers, front and back, and the engine runs strong with no hesitation, backfiring and idles well. They also have excellent tech support.
When I dyno'd my car last year I was a bit disappointed with the initial numbers. I faxed the sheets to BG and they recommended about 4 things to do. The next week I picked up 35hp on the dyno!
Let me know if you have any other questions.
Roscoe
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Roscoe
"Crisis occurs when women and cattle get excited!"....James Thurber
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