Here is what my 21 TPR deck is got under my hatch built by High Flow Dynamics (Lakesonly)
528 Ford Specifications
-Rotating Assy: SCAT cast crankshaft, H-beam rods, 36cc "D" shape dish Diamond pistons, -King bearings, balanced
-Heads: Blue Thunder 74cc, ported, +.100" Ford Racing valves, 3-angle valve job, 10* locks & retainers, 1.625" dia. springs, 230 lbs seat
-Compression ratio: 9.8:1
-Rockers: Miller 7075-T7 aircraft aluminum, 1.7 ratio
-Camshaft: Billet steel roller, custom ground for this engine combo. Lobe = 0.4550" / .4170", LSA = 109* [email protected]" = .266 / .278, Lift at valve = .757" / .709"
-Roller Lifters: Morel
-Block: D0VE-A with Boss 429 bulkheads, thermocleaned and mag checked, HFD Stage 1 oiling mods
-Bearing clearances: mains = .0035"; rods = .0030"
-Timing Chain: Ford Racing double-roller with billet gears and 9-position keyway
-Carburetor: Holley 4500 Series Dominator, 1150 cfm
-Distributor: MSD breakerless
-Oil Pump: High Flow Dynamics Stage 1 prepped Melling M84DHV
-Oil Pan: Armando's 10-qt jet boat pan and pickup
-Intake: Edelbrock Victor 460 with Dominator carb flange, ported to Blue Thunder intake port size
This engine was dynoed at Westech, which is the same facility where the recent Engine Masters Big Block Shootout had their engine finalists tested. Results were 737HP @ 6300 rpm and 672 lbs-ft of torque @ 4600 rpm, and 95% of peak torque was sustained all the way up to 5900 rpm. A torque curve that flat obviously extends well below the 4600 rpm mark.