i have the stock 340hp exhaust manifolds on my cuda. thats why i have to use the 90 adapter. and yes it leaks with new gaskets. on my duster i have headers and either filter will fit and it doesn't leak.

65 Cuda 360,3.23 SG-13.97 @99.4, 88 D100, 2000 Kota Qcab, 71 Duster 416 11.84 @110., 73 Imp ,(2)72 & (1)71 Dart Swingers
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