I've got the chassis on my MK4 build about complete. It's a Blueprint 347 from Forte's Parts with the Edelbrock Pro Flo 4 EFI. At this point I only have a few hours on the engine, moving it in and out of the garage. I do have an odd situation with the cooling system. After I run the engine up to temperature and let it cool down, the cooling system is still under some pressure. Even if it sits over night and is ice cold, if I remove the pressure cap it will puke water into the recovery tank. I've never seen a car cooling system under pressure when stone cold. For what it's worth, I don't have the old style expansion tank. Any thoughts? Just seems weird to me.