Spark plug recommendation and jetting

We should hopefully get the motor started in the near future once we have the pushrods correctly measured. So my question is what would be a good plug to go with and also jetting on this motor?

521 A-Headed motor, CR should be around 14/1 has a Holley 1050 Dominator and probably will be on C12 race gas. Right now it has 94 jets squared on it, cannot remember what autolite plugs it has in it, but since the guy seemed to have just thrown stuff together to trade it as a "race-ready" motor I would just buy new and go from there. Any help is appreciated. Thanks!

NGK R5671A-8 4554

Thank you!

I have a 521scj alloy heads cr 10.5 .. 950 holley and to go on pump gas . What plugs would a good start..

Autolite Racing AR3393

No Nos

No nos.... Cheers