Hey, let me chime in on a similar issue. Ive got a 78 TA 400 that I am reworking. Mild work on the heads, performer manifold, XE274H, roller rockers at 1.5 and a Ramair restorations exhaust manifold. Anything I should be thinking about to make this hum better? Its going to be a street machine for weekend cruises and a little fun.
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