Correct re the headers.
If it's an inlet leak, check the rubber hoses between the carbs and the engine, also check the tappings where the carb balance tubes are inserted. Both can leak.
As to...
Type: Posts; User: Jon_W
Correct re the headers.
If it's an inlet leak, check the rubber hoses between the carbs and the engine, also check the tappings where the carb balance tubes are inserted. Both can leak.
As to...
Ok, the camshaft issue will cause rattling that sounds like camchain. (I know, mine does it, the pre 05 engines were famous for this). What you have sounds like either an inlet leak or a exhaust...