You should not have to pull the trans to remove the flywheel, if anything just back the trans off some.
Once removed fire the motor again and see if you hear anything.
If so are you running exh manifolds and maybe your hearing the heat riser flap kicking back & forth?
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!
1) 1940s 100% silver 4 cup tea server set.
Two dry rotted 14 x 10 Micky Thompson slicks.
1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.
Education is what your left with once you forget things!
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