Flat tap hyd ws mec

I assume it’s something to replace the 268H that failed, for this combo:
Specs:
318 std bore comp 9:1 ported 302 heads bigger ex valves roller rockers match ported mid rice intake eddy 750 msd 6al blaster coil 1 3/4 block huggers dual 2.5 ex stock 904 a500 4.10 rear all Street no race
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If you felt the 268H was a good fit, then you’ll be looking for something that is basically the solid lifter equivalent to it.