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    Thunderbolt IV Ignition Module

    Does anybody have a line on a Thunderbolt IV ignition module, part no. 15248T02? Apparently the Merc factory is not shipping new ones. Most dealers don't keep them in stock because of high price. Hoping on has it on the self from prior shipment. Had no problem getting one about 6 years ago...
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    7.4L Hard Starting

    Have a 7.4L with TB IV ignition and Edelbrock 1409 carb electric choke and mechanical fuel pump. When cold engine is hard to start. Fuel is good, plenty of cranking power, good spark. With one shot of starting fluid it will fire right up. Idles and runs fine. Will restart after shutting down...
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