[Syn77]

So I know I'm gonna get chewed out for this but my cam went flat in my truck it wasn't broken in right so i was gonna get a summit cam and lifter kit for like 100 bucks but I seen a lunati voodoo 60102 for 130 so I said OK I knew I was gonna need springs. This is going in my 77 k10
355 th350 NP 203 373 gears
Not sure on compression
Performer intake edele
Hedman headers
Edele 1406
Msd wires and coil
624 heads getting better when time permits
So I looked up the spring kit for and I didn't know if they were to big for my crappy 624 heads the size of the factory ones I think are like 1.250 and the new springs are a little bit bigger like 1.266
So my questions are will they work and will I need hardened pusgrods and since its a higher lift cam then my stock one will the push need to be longer or shorter thx guysguys