Oh yes, here are the best food...

Penang: Char Kuey Tiew and Prawn Mee (although it's good in KL too) but thats where the food's originally from. Also, Nasi Kandar... google up the names so you can see the pictures

Taiping (Perak):- One Ton Mee or Won Ton Mee
A very chinese town, you can feel like you're back in the 80's friendly people riding bicycle everywhere.. old cars too..
Oh yes, curry mee too

Old Klang Road:- Bah Kut Teh

Downtown KL:- Dim Sum, there's this one place really good... been opened since early 90s probably in the 80s... sorry forgot the name

Telok Gong:- Very famous seafood restaurant the place is called coconut flower.. it's very remote though so you might want to have a car. try the coconut and the indian alcohol stuff

Wake up early in the morning and if you see a food stall by the streets, most probably is nasi lemak... yum yum...