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I had similar problems as Tomcobra17 on a mild crate 302 (not a Roush) with a 670 SA made in 2005. I did all the same things to try to resolve the high RPM miss but to no avail.
I read the good results that Tom had so I ordered and installed a Q650 Quick Fuel carb as recommended by Brent from B2 Motorsports. Brent tuned the carb to my engine and it runs Great!!!! It fired up the first time and has unbelievable throttle response. No more high RPM miss and just runs a lot smoother as well. Great job Brent!
Last edited by GLS-BDR226; 10-19-2011 at 06:00 PM..
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