I got the boat back on the water today. Got the timing set and it was running freakin' awesome...
But then I noticed it was running really hot, so I figure, maybe it needs to be driven. So I get her out. She was slower out of the hole then it should be, and then it as only turning 5000 RPM (A/B impeller, 496 BBC roller cam, OT headers, big valve head 10.5:1 CR, tunnel ram, dual holley 600's VS). Now, this is going to be very hard to describe, but I"ll try
Then, I started hearing this awful noise, it sounded like a metal on metal tap, (almost like a loose rocker or something) but it was a hollow tap, and was coming from the top, like by the carbs; it was also sporadic, but still increased with throttle. The water was like 215 F, we had to idle back into the ramp. And there is water in the oil now, not a ton, but its milky.
So I'll tell you what I deduce before even tearing into anything. I think its intake gaskets, and that popping noise is the hot boiling water coming up through the intake manifold...and the gaskets being the cause of it running so hot.
What say you?!