will these heads work on a stock tpi intake manifold?

http://www.jegs.com/i/Patriot+Perfor.../2151/10002/-1

or do i have to get the edelbrock tpi to vortec baseplate thats like 500 dollars extra

it says "dual intake bolt pattern" im guessing that that means it will work with stock manifold.

thanks for any input.

 

I would like to see a reg intake gasket on them .
The Vortecs have a higher port so even though the reg intake bolts up it may not seal on the Vortec heads; need a raised port reg intake

Reg SBC intake on similar dual pattern heads