Wow, big *** head flow and a little cam and even smaller tires and gears. It'll never hook and when it does it won't be anywhere near the rpm range those heads are going to need. The cam is just one that he had on hand.. I can always change it.. and wheels and tire combo I have bought yet... I need a 29-31x10.5x15 combo right? I's like to try and get the biggest tire under it with out cutting my dana
Those heads are huge and will need rpm to make power. Personally I'd say 5.13 gear with a 14/32 or 15/33 tire and an 8" converter in the 5500 range. And that is being conservative. lol
You didn't mention what the car weighs (or did I just miss it?) but 9's are certainly well within reach if you exploit those heads to their full advantage. Mid to low 9's in a 3000 or less pound car with a real race 4 link suspension and a big tire.
It's not just the width of the tire that provides the footprint, it's also the height. As the suspension plants the tire it spreads lengthwise too. The taller the tire the larger and longer the footprint.
Personally I'd spend less coin on the engine and more on the suspension. You'll probably be faster that way. All the power in the world isn't worth a damn thing if you can't plant it to the asphalt.