Re: chev 4-7 firing order change
Read the link. The same goes for using a 351 firing order on a 302 Ford where 7 and 8 fire in sequence. It can take some of the stress off the crank. You need to use a cam that matches the firing order, though. I tried just moving the wires and it wouldn't fire...
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Dale Shearon
68 Mustang 6394
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