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<DIV>I have a Titan, OS 1.60, Mueller header, Greve pipe, Ironbay regulator before the needle valve, OS #8 plug, running a 17x13 with 15%. Tank is monted over the CG. Hyde mount. As near as I can measure around the header, I am at the length that Piedmont recommends for these pipes on their site. Good power at full throttle, but midrange stinks, wanting to load up at 3/4 throttle, and not transition to full throttle. Also, the mixture changes in the air, upright to inverted, going rich inverted. I have the regulator mounted horizontally about 1.5 inches from the needle, do I need to mount it fore-aft like a Cline? Do you think I need to extend the length of the pipe? Any carb adjustment tricks? I'm new to pipes, so any info will help.</DIV>
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<DIV>BTW, the original pressure check valve went bad before I even got to fly it. I got a check valve (Foremost) from my local hobby shop that seems to work, developing pressure and holding it well. Have others had problems with the Ironbay valves?</DIV>
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<DIV>Thanks.</DIV>
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<DIV><FONT size=2 PTSIZE="10">Jon Lowe<BR></FONT></DIV></BODY></HTML>