We ran a 12-1 compression 355 factory steel crank and connecting rods, roller cam, set of Brodix Track 1's tunnel ram with 660 center squirters, old accel dual point, cheap carter fuel pump, factory six qt. oil pan. We ran a powerglide, 5500 stall convertor, 4.30 gears, and 31" X 10.5" tires can ran 8.60's easily