I did a port job to my 7120 casting and im tryn to figure out witch spark are the best to use. I had the head milled 0.10 and combined it with the mopar performance head gasket I also ported and polished my LOG style intake manifold I upgraded the injectors from a LT1 6 hole 24lb the TB is also a 63mm with spacer and C.A.I but I have the stock ignition(for now, all those parts left my jeep funds broke) so if you can help me out in choosing the correct plug you would help me out a lot thnx

BUM