nflo4385

Ok guys this is m first engine build ever just finished a 383stroker in m 80 vet should be around 500hp and I finally got it started up tonight for the first time ever and even though I am having some carb issues I was able to get the float levels close to where they need to be so I was able to get my car started up and running and able to break my cam in for the 20minutes. Here is my problem during the last minute of breaking my cam in the car started running choppy and when I gave it the throttle a mist of white smoke/cloud appeared to come out over the top of the carb, could you take a guess as to why this would happen. I shut the car off and haven't started it since being its night time anyways and don't wanna wake everyone up but lemme know what you think could cause this. I do have a couple water leaks on my intake manifold coolant bolts, nothing bad just drips as I forgot to wrap pipe tape around the threads. I do also plan on taking this somewhere to have someone do the fine tuning on the carb, just wanna know why I would have this white smoke, I do know the carb was running very rich could it be a plug burnt out? and is causing this? Any help is appreciated

oldalaskaman

you've answered your own question, intake water leaks

scottyp99

The intake manifold bolts don't touch coolant. Wrapping them with pipe tape won't stop coolant from leaking past the threads, because there is no coolant to leak. Your leak is coming from the coolant jacket, past the intake manifold gasket. It's getting into the intake port. Gotta pull the intake manifold and make sure it seals. I like Ultra Gray RTV, go easy with it, just a dab'll do. High Tack around the intake ports. It's a good idea to put some sort of sealant on the intake bolts, but not because of coolant, because of oil. I like High Tack. Ultra Gray and High Tack are pretty much all I use. Well, Copper Spray-A-Gasket in some instances, like head gaskets.

Scott