Rob, I used the Fel Pro valley pan w/ the crossover blocked on my dad's 440-6 road runner. It's a mild 440 w/ the 509/292 cam, around 10:1, mildly ported 906's, etc. It runs great even in cold weather. Never use the choke.
I think the part number for the blocked pan is 1215, but don't quote me on it. The MP piece w/ the steel plates is a joke.
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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