View attachment 1715446715 Surprise against unworked exhaust chamber
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Just a little bit noisy but never backed up. Early on in this post I said I hated to even waste my time flowing the exhaust ports because of the big divot in each exhaust port under the seat. Well guess what guys I think it was intentional by Speedmaster. It made me dig in my stash and drag out an Edelbrock Head that was unmodified. What a bunch of crap. This is the divot on the Speedmaster heads. The shortside is as smooth as a babies butt and nicely rounded. Finger approved.
