I've had good luck with a Deka 850 cca 34/78 dual terminal batt, in my diesel tractor. Paid less than $100 for it. Tried to buy a couple recently. But the best price I could find was well over $100, closer to $125. Yes, I realize that lots of guys don't mind paying $300 and even more for the high end batts.
You might check with your area discount batt stores that sell Deka batts. It seems that batt prices can vary, quite a bit.
https://www.batteryprice.com/product-p/deka778dt.htm
Also had a couple of Exide NASCAR 800 cca 34/78 dual terminal batts that worked good in my last 455 bracket car. Bought one at a local discount batt store. They only had one in stock. Had to buy one at Tractor Supply. When I checked Tractor Supply this time, it seems they no longer sell those Exide batts.
Have that same 455 in another car now. Bought some 800 cca Marine batts for it, from Advance Auto. No alternator. Cranked it probably 20 times over a several week period. Never failed to turn it over plenty fast enuff to start, even tho I never charged 'em. Don't know how long they would have kept crankin it. But, they seem to have plenty of power to last thru a race without having to charge 'em. Finally did charge 'em anyhow, just because.
You can go online & get a 25% off discount code for Advance Auto Parts, buy online, & pick 'em up in your nearest Advance Auto location. This made these, by far, the cheapest 800 cca marine batts I could fine.
https://shop.advanceautoparts.com/p/...920%7CL2*15000
https://www.couponcodes.com/advance-...ons?em=6826476
If you don't mind paying $300-$400, you can buy the latest batt tech, big name batts.
https://carfromjapan.com/article/car...attery-review/
https://www.summitracing.com/search/...tOrder=Default
https://www.summitracing.com/search/...rder=Ascending
https://www.summitracing.com/search/...EaArNSEALw_wcB