ATK HP89C-EFI Chevy 350 with FITECH EFI 390HP

Engine Specifications: HP: 390 TQ: 420 Block: OE roller block 4 bolt main 1pc seal 1996-2000 Bore/Stroke: 4.040” x 3.480” Displacement: 350CI Crankshaft: OE Reground external balance rear of the crank/internal balance front of the crank Rods: OE powder metal 5.7” Pistons: Hypereutectic 10:1 Compression Rings: Moly Camshaft: Hyd. Roller Cam Specs: 220/224 @50 .528in/.536ex 110LSA Timing Chain: Double Roller Cylinder Heads: ATK High Performance aluminum with 2.020 in. /1.600 ex. valves Rocker Arms: Billet aluminum roller rockers 1.6 ratio Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some corvettes and 62-67 chevy II’s) Oil Pump: Melling STD Volume Flexplate/Flywheel: Externally Balanced – Pioneer #FRA-159 Balancer: Internally Balanced – PowerBond #PB1046-N Intake Manifold: ATK dual plane intake Distributor: HEI (Iron Gear) Water Pump: OE long pump EFI System: Fitech Go Street EFI 400HP (throttle body, wire harness and hand held unit included) Fuel Pump: Not Provided – must run electric pump or mechanical fuel pump with Fitech Fuel Command Center Spark Plugs: Autolite #3923 Spark Plug Wires: 8mm Engine Info: Oil: Conventional / Non Synthetic 10W30 Oil Filter: Wix or K and N Timing: 34-36 Degrees Spark Plug Gap: .035” Firing Order: 18436572 Octane: 91+ Stall