TBI 5.7 Chevy

Hello, has any one modified a 5.7L chevy with TBI. I`m looking to increase the Hp. and wanted to know the problems that I should head off first, I`m going to bore it
.030 and install some cast flat-top pistons, Install the computer compatable comp cams 434int 444ext cam, and the usual oil pump, double roller timming set new gaskets and seals,some flow tec coated headers and the GM performance votec heads and intake manifold.Some of the queastion I have are will the stock push rods work? will I need to update the TBI or can I leave it stock without causing damage? Any and all advice is welcome,Thanks