Today in Sunny Pasadena I took my day old fresh restoration for a ride to see how she'd handle 93 degree atmosphere. he 351 is pushing the radiator to the limits. It's a stock replacement that came with the car, so it's almost new. On cooler days, she does OK, but it's over 90 almost every day in the valley during the summer. Today I'm pushing 210 with a 180 stat. Any suggestions for a bigger (deeper core) radiator? Summit sells what appears to be a stock unit.