I like 4” stroke cast crank to about 500 hp, but no eagle cast cranks. You need as much head flow as possible. Solid flat tappet no hydr’s with headers and an air gap 800 cfm carb 10 to 1 should get you mid to high 11’s with a sorted out combo. That stroke will live forever. More hp than 500 or want room to grow go forged crank. I have probably 1000 runs on my cast scat crank and a ton of street miles. Shift at 6400-6500 rpm
