ok so here it is.
i swapped engine after i bought the thing with a cracked block.
was orignal a 305 and i put a 327 out of a 68 vette in it the block has been bored 30 over fit right in there.
but ever since then my exhaust sounds like ****...... any ideas of what to do?
your help would be greatly appreciated

 

hum... never heard doodoo before lol like is the exhaust itself rattleing like the pipes or just a odd exhaust note?

 

i think its actually both...........

 

Make sure everthing is tight and check to see if you need new hangers and rubber for the exhaust.

 

is it rattleling near the engine? if your useing the stock exhaust or headers that use the stock heat riser piece, i had a rattle once and it turned out to be the linkage on the heat riser. removed the linkage, problem was solved.
just a thought.