BOSS 429 Specs & Roller Rockers

Hello,

I am embarking on the assembly of a set of C9AE Ford BOSS 429 heads,

I cannot find specifications on these anywhere

Is it possible you could archives of information and give me the factory specs for ( Overall length, Outside diameter & Install height )

for the valve guides to fit these heads?

Also, do you know if there anyone who is still making roller rockers to fit the stock BOSS heads?

Thank you so much for your time

Steve Johnson

SteamDonkey@aol.com