white smoke and a bit of slime

If you are doing the head, what about doing rings too? The crossmember under the engine unbolts, then you have clear access to oil pan to remove and clean. These motors are known to have stuck rings after some miles. Something to contemplate.

That's what the Cuss did. And also new connecting rod bearings.

my plan is to fix this to run just properly so i can rebuild another block that ill be supercharging or turboing. in the end im building a bagged supercharged daily driver

So I wasn't crazy. Pulled the head today and the gasket had blown on cylinders 3 and 4 as well as there was a small divet on the block where the gasket blew out. So I have filler it with jb Weld something I have successfully done before and am now waiting for the jb weld to harden

a "divot" ? a "rivet" ?

Like pitting from coolant I'm guessing

Got it all bak together today an now It's missing on cylinder 4 I checked my timing and everything again nothing's wrong there but I have spark up to the plug and it ran fine before I ripped it all apart.

Not really surprised about that since you JB welded the block deck - that had failure written all over it

It wasn't in the fire ring area it was just out side the are the cylinder seal sits on. Now the truck won't even start I'm stumped it cranks and sounds like it wants to start but just cranks