Ok here's the deal i just put a head gasket oplugs truck , z24i engine with standard non tbi intake and Webber carb. Finished putting all together cranked runs like a top backed it up pulled closer to the water hose then killed it only running for two maybe three minutes tops. Started filling with water till level was at top of radiator neck tried to crank the truck back up and wouldn't even turn over the Starter would bind up but not turn over i pulled all four exhaust plugs and two and for were wet so i spun it over and blew all the water out of the cylinder more to make a long story shorter i borrowed a Boro scope from work and checked a lil closer into this and you can watch water stream in through the intake valve only when they are open if they are shut i get nothing stays dry as a bone but if i turn the engine over by hand enough to crack a valve open on intake side and it will fill that cylinder up in just a min or two.i replaced the intake gasket and double checked the clean on the Intake itself not sure if the head is cracked and the machine shop missed when i had it checked for cracks and resurfaced not likely but possible or if maybe my intake may be cracked or warped. do these heads crack often? Has anyone ever cracked an intake before? Any way so there it is just trying to get some info to try and help me figure out which direction i need to go in now