Found a set of Stage VII Mopar Heads

I think they take a the same header as the standard Indy -1s and SRs (not the EZ heads).

From Mopar sight: Cylinder Heads, Stage VII
These heads have a flow rate of 325 cfm intake, 226 cfm exhaust, at .700" lift.
1 P5153823 Cylinder Head, Aluminum, Max Wedge, Raised Port, Stage
VII, 75cc, Angled Plug, 2.20" Intake, 1.81" Exhaust, 290cc
Intake, 100cc Exhaust, B/RB.

I wonder if i'm opening a can of worms. I don't want to give myself a headache with this. Would I be better off with a set of bolt on heads? Doesn't McCandless or some companies make killer bolt on heads? I want my car to run Hard. 130 or + ;) in the 1/4.8)