I haven't had any issues sealing mine up w/ the Superformance gaskets, but I'd love to go with O-rings for the ease of installation. Especially w/ larger than stock ports that require trimming gaskets to fit.
My concern is that my intake manifold has been port matched w/ a standard .060" thick gasket.
Anyone know what FHO charges to do this?
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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