Radiator core addition cost???

Good thing you live in Alberta, Canada :salute: It gets up 110* here in the Valleys of LA. I live near the beach but I work in LA and would like to drive to LA in the summers with the top down. Don't think the 2 core stock 273 radiator with shroud will work optimally for my 400+ hp 340. Don't think I should take the chance with the new engine and be standed in a bad part of LA if you know what I mean.

dgc333: are you running an automatic or manual transmission and was the 22" radiator a 2, 3, or 4 core?