What's the best way to lower deltas when towing heavy? I have good deltas on average but when towing I'll see temps get up to 220-230, fan kicks on temps drop. Any way to get the fan to kick on earlier? Everything is ******d, coolant filter, S&B filter, five inch exhaust, studs, oring heads, etc. some recommend the bpd oil cooler set up, and afe inter cooler.