Haveing problems with my vl.?

the car is getting to half way on temperature gauge. just put a brand new radiator,plugs,leads,thermo,thermo housing,etc.


the car runs good until it gets hot. put the foot down and it plays up,loses power, likes its starving for fuel. could the temperature be getting this hot because of a shot airfow meter,


conductd all the leads to keep the heat out of wiring so the crank angle sensor dosnt get affected but cant keep the temp down. urgent help needed.
Haveing problems with my vl.?
clogged catylitic converter?