Then stop by-jacking the thread and create a new one.
FWIW, if you just want to get the most out of your engine with exhaust manifolds, then just ignore the fact you have them....
I suggest a few more exhaust degrees of duration than normal splits
Hi-Jack over. My build is a long ways away. Just trying to glean a little info before I start my own thread. like... add a few degrees of exhaust duration.