Z1 Blocks

Has anyone used any of these? Do you see any gains or are these strictly for Pre-FI and just stronger components?

Also, whats the point of only offering short blocks? Why wouldnt you want the complete build?

I have a list of engine components here that I am planning on buying to build a VQ for FI, but it seems like this is a good option as well...

 

why dont you call adam at z1 and ask them. they know what they are doing and selling, not some fly-by-night shop or a shop you can't get a hold of like some sponsors on here.

 

I hate to bother a company for information if I'm not 90+% sure I'm going to use them. Right now I'm just lookin for info not to buy.