Biggest mistake ever- lunati cams

PRH said
I don’t have any SM heads on hand to check at the moment, but I think a 1.460 spring would fit those heads without machining anything.

forphorty said
I wish a cam choice was my biggest mistake ever.

Definitely was in this build. If I would have known the spring height was different, I would have tried to figure it out. Last minute change so I went with the flow. The machine shop was aware of the cam being used and the stock heads were a good fit for the springs but in all the swap, I didn't think to check the measurement difference between them and surprised the shop didn't either They build a lot of race motors and should have made sure they were right.
Im temped to pull the heads, sell them and have hardened seats installed in the stock ones. All this to get out of the dreaded, leaded race fuel syndrome. It's why I changed the heads out in the 1st place. I run the 110leaded vp race fuel 50/50 in my barracuda and when I started this build the fuel was a lot cheaper. Pandemic drove everything up and now 93 unleaded is the price that the race fuel was. 105$ for 5 gallons and I can burn that in a half hour and it surely don't need 110 octane. Hopefully I can find the right springs tho.