I have 1.7 roller rockers with the stock cam.
No issues at all with the stock heads or the FRPP GT40 aluminum heads I've had on the engine.
The GT40 aluminum heads have 1.94" intake and 1.54" exhaust valves.
I believe the Eddy's have 1.90" intake and 1.60" exhaust valves.
The stock cam with the 1.7 rockers increases valve lift from .444" to .471".
So, not much to worry about.
No issues at all with the stock heads or the FRPP GT40 aluminum heads I've had on the engine.
The GT40 aluminum heads have 1.94" intake and 1.54" exhaust valves.
I believe the Eddy's have 1.90" intake and 1.60" exhaust valves.
The stock cam with the 1.7 rockers increases valve lift from .444" to .471".
So, not much to worry about.
I ran 1.72 Rockers on the stock heads. The only issue is the stock valve covers won't work with 1.72's. Although there is a trick, you can grind the corners down on the 1st and last rocker (both sides) inline then the stock valve covers will work. I actually did this because I didn't have different valve covers and I needed to get the car running. Anyway, they will work fine.