how much valvelift can the smallblock edelbrock rpm heads handle before having to cut the guides?

how much lobe lift is safe without uncovering the liftergalery oiling with the comp #8043 rollerlifters in a stockblock 340?

How much compresion can the Felpro#1008 headgaskets handle with the help of cylinderheadstuds?

the plan is to use the Scat #1-48013 stroker kit wich if i mill the openchamber edelbrockheads can give enough compression to be a good choice for E85 or just run it with the big chambers on pumpgas and a crane #698801 solid roller camshaft with 260/266@.050lift and .630lift,i think it could be a real fun street/strip combination,whats your opinion?