1952 215 motor performance parts for increasing hp. looking for good sources !!! thank you

I have a 1952 Ford F-1 and would like to keep the original motor 215 cost clipper 6 and just do some modifications to it to try to get a bit more power !!! I’d like the best suggestions for hp in crease for the buck !!! I appreciate your wisdom and patience!!! I haven’t seen any place to order headers or different carb manifolds ??? Any suggestions??? Thank you !!!