Reply to "Question for the Bosswrench"

That much block filler shouldn't affect engine remp at all; most of the cooling is done in the heads. I wouldn't use the high pressure pump spring at all; Two cars had distributor drive gear wear problems from excessive loads with that spring. One car floated its valves below 5000 rpm due solely to excess oil pressure pumping up the hydraulic lifters. Removing the spring allowed revving to 6500! Only slightly advanced (or retarded) timing greatly affects engine temps in Panteras. Mine works best with 6 degrees initial & 34 degrees total (initial+ vacuum+ centrifugal) on today's crappy gas. It runs all day @ 190 degrees water & 200-210 oil temps, up to about 120 mph, then the oil temp starts up. Don't expect much from full-flow air-to-oil coolers unless its the size of the AC condenser. And a bypass cooler that size will only be good for maybe 5-8 degrees lower oil temp.