400 with TF 240 heads - valley plate options?

DGrace said

Hmmm. I thought the 240 heads extended past the valley slightly requiring a plate set up? I am modestly hoping for around 500 hp - 470 stroker with 240 heads - does the factory style valley plate cover the ports on these heads?

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You should read the Trick Flow articles I have on my website. I covered all of this information years ago. The factory valley pan will work, it just doesn't work very well. The ports don't line up very well with the Trick Flow ports. It will work okay on a modest performance engine, you'll never notice the difference. If you are trying to squeeze the last 10 hp out the engine then you need the batwing setup.