About 30k miles. I’ve never dynoed it but the math puts it around the 420-430 hp range. Stoke stroke. 9.8:1 compression, Lunati 704 cam, iron 308 heads ported and flow benched at 264 cfm @.500”. Eddy air gap, windage tray, Doug’s 453’s, Holley DP 750.
I run a champion 26” 3 core radiator with the Ford Contour electric fans. Never had an issue with it running hot.
