Hey so firstly this is my first post ever here so if it’s in the wrong spot feel free to do whatever is necessary.

Now my issue is that I had a coolant leak from the lower intake gasket. I fixed that and got the entire car back together. However that’s where my real trouble began. It missed and shook and clanked like a bucket of bolts bouncing in a dryer. So I started doing some digging and upon removing the driver side valve cover where all the noise was coming from, I found a quarter size hole between the second and third push rod. I believe I have other issues because with the oil cap off and engine compete, it just dumps smoke out. So I guess after all this rambling I know I’m going to do a rebuild but I’m wanting to spruce it up a little bit as well. I was thinking about doing the split port swap since I need a head as one has a hole in it but I was also thinking about the 4.2 stroker setup At the same time but I get lost on if I need a computer from a donor vehicle or if I would Be better off trying to find someone to tune the factory computer. I know I kind of went all over the place but I want this thing to have a good bit of go when I get the engine put back in so whatever info anyone is willing to give would be greatly appreciated!! Thank you all in advance!!