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</style></head><body>Bill, the H6 carbs on a stock intake manifold have the same length as the HS6 carbs on the longer TR4 intake manifold. I wish I had known this before I converted my TR3A to the longer intake and HS6's The thought at the time was that using the longer intake allows more mixing of the air/gas and then more even burning so more power. I have measured both set ups and they are the same. You don't have enough room in the inner fender to mount the longer H6 carbs to the TR4 intake. I think that the shorter carbs on the shorter manifold would give less power for the above stated reason. But how you spirited you drive might make a difference, too. You do have to rework the choke, which is a pain. I'd go with the original set up ( and did on the latest acquisition).<br>Tom Fansher who needs to sell the 1960 TR3A white with black interior<br><br><blockquote type="cite">
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</o:shapelayout></xml><![endif] -->On January 29, 2018 at 11:11 AM Bill Beecher <bill_beecher@flash.net> wrote:<br><br><div class="WordSection1"><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size: 11.0pt;">Starting to revive a 1960 TR3A motor that has be on the shelf for a number of years and have arrived at the SU carburettors. I find I have complete pairs of H6 and HS6 units that I could use so I would like to pose the question: Which would be preferred using the original TR3A/H6 intake manifold? </span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size: 11.0pt;"> </span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size: 11.0pt;">I heard noise in the past that the shorter carbs on the TR3 manifold would hamper performance. Any truth to that?</span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size: 11.0pt;"> </span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size: 11.0pt;">Cheers,</span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size: 11.0pt;">Bill</span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size: 11.0pt;">TS75131E</span></font></p></div></blockquote>
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