I would recommend going with a Boss 638 with a Procharger. Here is a rundown of what I would build: -Eliminator Premier Block with Billet Main Caps -Billet Main Caps -Roller Cam bearings -4.700" Bore -Crower Steel 4.600" Crankshaft -BBC Snout -MGP Aluminum Rods 6.800" -Diamond Custom Blower Pistons -Metric Ring Pack -Fully Coated -H11 Pins -Total Seal Rings -King Main and Rod Bearings -Moroso Oil Pan -Kaase Heavy Duty Oil Pump -Bullet Custom Bullet Billet Camshaft -Morel Lifters Solid Roller -7/16" Pushrods -Shaft Mount Roller Rockers -Titanium Retainers -Manley Nextek Valve Springs -CNC Motorsports Ported Boss 429 Cylinder Heads -CNC Motorsports Dominator Intake Manifold -Custom Built Dominator Blower Carburetor for E85 or Alcohol -Custom Built Procharger F3 Blower System -MSD Ignition -Engine Cost $35,000 This combination will easily make 1700hp PLUS! A complete Custom Built Powerglide Package that includes the following would cost $5,000: Aftermarket Case Powerglide SFI Bell Housing Locking Dipstick Blower Converter Flexplate This would be all assembled to the engine ready to install. If you opt to go with a Nitrous engine I could build a 638 ready for Nitrous for $43,000. This would not include any Nitrous Components. The Twin Turbo option would cost $5,000 more. An aluminum block can be used with any of the engines for $2,000 more. I prefer the iron block at these power levels but that is up to you.