I want to run at least 4.80 to 4.70s with my car. It is a 240in single shock swing arm dragster. My current motor is a 500in rb motor with out of the box 440-1's on alky and indy block, 13.2 compression. It has run a 5.601 in really good air and typically 5.72-5.75 in my 2660lb door car. Im thinking my dragster weighs around 1850 race cars as it is now with a bbc motor in it. It's a 525 with pro comp heads and a gm truck block its ran a 4.92.

What will the car run just by putting my current combo in it?

Can i get to where i want to go with taking my motor to a 572 or 588? I would raise the compression, have the heads ported and bigger valves put in the heads i have now. untill i can buy some bigger heads.

Thanks,
Chris