When the headers are made with stock measurements a small amount of machining (decked block) may throw them off. Try doubling the flange gasket. A small amount spacing at one end of the header may result in 1/4" or more at the other end.
Doug
MOPAR or NO CAR!!!
1965 Dodge Coronet soon a 6.1 Hemi with a Magnson blower 810 hp on pump gas
1964 Dodge Polara 582" Indy alum Block 426-1RA heads,
1933 Plymouth PE all Steel, LT1 4L60E
1959 Plymouth Savoy 33,000 mile survivor
Old cars are never done. They are ongoing projects!
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