TFS1 cam; 1.6 or 1.7 rockers?

[98stangv6]

I have a stock short block with TFS1 cam. I am in the process of switching from GT40p heads to TFS Twisted Wedge 170. Would I benefit going with 1.7 ratio rockers over 1.6? Would it be a noticeable difference due to higher lift? Pros and cons?

[NXcoupe]

It might work, but verify piston to valve clearance before you finalize it all. I would run 1.6 as I just don't see the benefit of increasing the lift that little bit on that camshaft.

[Stangman]

I have the same cam and Cobra 1.7's... but with cast iron 3-bar GT40's... I think I'll also be running into this issue. Piston cutting tool FTW!

[98stangv6]

Thanks guys, went with the 1.6 Miller rockers.