I am replacing my 2.8 with a 4.3, but i have to get the 4.3 rebuilt first. I know the 4.3 in an old body sdime will be fast but i want to maximize the hp. one guy said if i bored and stroked the 4.3 it would be able to hang close to a TA. how true is that? Any suggestions on how to make a STRONG 4.3?