Today I made up and fitted the heat shield and took the car for a run up the motorway for a couple of hours. Some very interesting first impressions... 1. The carbs are cool to the touch after an hour on the freeway....normally quite hot 2. Fitting the brackets to the underneath exhaust studs is a real pain!!!!! 3. The motor seemed really dead ie down on power I got blown off by a porker 924!!! 4 Fuel consumption was noticeably way down. I reckon a 1/3 less than normal! Questions If the carbs were running significantly cooler, could this upset the jetting? What sort of change might u expect ie richer or leaner? Would it affect low rev range or high rev range? Might it run leaner is the question I guess? Relevent settings twin 45dcoe Venturi 36 Main Jet 150 Air correction jet 150 Emulsion Tube F2 Idle Jet 45 F9 Pump Jet 40 Plugs BP6EY Std B/B electronic dissy - no vac advance 15 BTDC 76 degree cam Big valves etc etc Cheers Mick
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