Hi everyone, happy thanksgiving.

Based on my setup, do I need to plumb in a water pressure relief valve and dump?

1985 Mistress, mild 468's, original pickups (aluminum casting with a "grate" that hangs down an inch or so off the transom). I'm using crossovers and Stainless Marine manifolds.

It's a pretty heavy setup and I'm not planning any more power for a long while. Just trying to keep it simple and get it wet ASAP.

Many thanks, Randy

Really dont know until you get a water pressure reading underway.

I have a one season, fresh water used Mercury one if interested.

Can you cut down the PU to reduce the depth below the bottom? What is the current water pressure? A picture of you PU would help.
Ben

I've never had the boat out so I have no idea on what pressure it will run. I'm just getting the engines buttoned up and trying to get a read on whether I should plumb these in from the start or try it out. On a budget.

I can post a pic later this week. It's definitely "re-shape-able".

Thanks for your help.

like elitemarine.get a gage on it and check it out.your pressure should be some where around 12-25 pounds depending on your setup.i am sure someone else will chime in.