My intake manifold leaks like a sieve

Not attacking anybody - just saying what I had for experience with the imported ones.
So the new heads - were they milled? Back to my other question - did you make sure the intake fit the new heads properly, or did you just get the bolts in and go?

I think I just fumbled the install
I don't think the manifold is warped
I doubt they milled that much as it was a $300 "go through p&p job"
I just bolted the intake on and started it up

The first time I had really high revs like I had leak in my intake gasket

No water was leaking then
I then reinstalled so now I have no high revs or intake leak but I'm leaking water out the back

3rd times the charm????


No guide pins were in this block
I used the intake aluminium guide sleeves and put rtv around the water ports but I guess I need to try again