65 Belevadere all steel we have gone 10.94 on pump gas with 915 heads 2.14 / 1.81 valves....Its a pump gas 440 Source 526 stroker. Its got more in it, we are fighting traction since the car is not tubbed. Its fast, streetable and fun to drive.
With a 526 that has to have some fast port speed
And it likes a lot of carburetor.....1.50 60ft on that 3400 steel tank plus driver.