I just rebuilt a 289 with a goal of about 300 hp. The car is a 65GT convert and I wanted the car to look and sound stock. I also was building for low 20's as far as mileage was concerned. Car has 3.25 gear and T5 tranny
Heres the engine: 289 block .03, 302 crank, C08 rods, boss windage tray, 9.5 compression Hyper pistons (light weight), alum flywheel. 351W heads 58cc chambers 1.94 In, 1.6 Ex., ported. cam is 204/In with .450 lift, 214/ Ex with .480 112 lobe centers. Stock intake and 480 cfm autolite carb, 289 HP exhaust manifolds. Stock distributor with vacuum advance, timing set at 12 deg initial.
Engine runs fine but seams to have only a slight power increase from the stock 289 A code engine. I feel this combination shoud make 300 plus? Where did I go wrong?
Heres the engine: 289 block .03, 302 crank, C08 rods, boss windage tray, 9.5 compression Hyper pistons (light weight), alum flywheel. 351W heads 58cc chambers 1.94 In, 1.6 Ex., ported. cam is 204/In with .450 lift, 214/ Ex with .480 112 lobe centers. Stock intake and 480 cfm autolite carb, 289 HP exhaust manifolds. Stock distributor with vacuum advance, timing set at 12 deg initial.
Engine runs fine but seams to have only a slight power increase from the stock 289 A code engine. I feel this combination shoud make 300 plus? Where did I go wrong?