what valve springs do I need for my gt40ps

[stang-geoff]

I think I'm going to buy this cam with 1.6 rockers unless there is more to gain from stepping up to the next cam.

Trick Flow Specialties TFS-51402000 - Trick Flow® Track Max® Hydraulic Roller Camshafts for Ford 5.0L - Overview - SummitRacing.com

What valve springs do I get? I know there's a lot of guys out there using this cam with these heads so what are you guys using?

 

[87AODGT]

use the trickflow spring kit, it's made for that cam

 

[stang-geoff]

and the kit is a straight install? No machining needed?