If I read tom's original post correctly, the engine with the SP2 *and* a more restrictive exhaust made the same power as the XE276 with headers.
The consensus was the engine would've made 15-20 more HP with the SP2 and the same headers/exhaust.
Did I get that right?
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'72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car!
'73 Firebird 350/4-speed Black on Black, mix & match.
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