Motor for drag strip

[jeffs56]

I would like to keep It around 2k-4k I know that's not much but like I said I just want to do,it for fun. I have a 350 motor that needs rebuilt. I have a 454 4 bolt main. So if you guys recommend the SBC how would you recommend I build it and what heads to use. Also if you recommend the 454 how and what would I use for that. And then there is the LS not sure if that's a good route or convert it to carburetor and not use the fuel injection. Let me know thanks again for helping out