if i want to convert an front mounted needle-valve engine to a remote needle valve setup, i leave the existing needle little too rich and add a second needle in the back of the engine hooked up to the fuel line (fine tuned proprerly)...

my question is what type of needle? if one can't get a remote needle from the same make, does it has to be from a same sized engine of anothe make? does it matter which one?

can someone enlighten me on this?

thnx Vasek