not worthy. just to get into 14s will take at least $4000. And its not even fast.
Whats up with fuel starvation? U mean like oil slashing from the sump? Can easily be solved with an aftermaket pan and sump or you could go and modify yours. Or instal a dry pan.
If thas an oil presure issue that a high flow oil pump would work.
Iam putting a 305 and a t5 into my 320i (1982). So that should make it go fast. I think getting a biger or a better(newer) engine should do the job in your case. (or a possible turbo)