im running a M6 so i can street a bigger cam easier than an automatic. i think with the pro action heads this combo will scream.

 

http://www.enginekits.com/heads/heads1.html

The 180's and 200's are going for 675$ assembled.

 

I would tend to be wary of any assembler that puts a 2.05 intake valve into a 180cc head....

Also that price is dirt cheap.

Anyone ordered and used from this place? It is so cheap that I would really question the quality of the components, etc.

Inexpensive is a good thing...but dirt cheap is another. Besides, I have spent about 1.5 hours on the phone with Competition Products and also know people here who build engines that use their stuff. It makes me trust them when I know others (consumers) who buy their items and it works...