I am looking for a 3 or 4 core 26 for m 67 RT; a 512 wedge will be going in. Last time I built a 528 Hemi and bought a Ron Davis radiator for 700 bucks; didn't cool any better than the 26" stocker. So this time I am looking for a good reasonably priced radiator that looks good and cools good. Anyone using a 4 core?