4 bolt mains for LA

Will hopefully be making that kind of hp. I have new Scat 4340 crank Dome pistons and W 2 race heads with 285 and 220 flow. Lunati cam 302/310 279/281 duration 640/640 lift 104 lsa w/1:5 plan on using 1:6 rockers so will bump lift
a bit. Wish I had extra $$$$ for new block. With compression being high. Need all the$$$$ just for gas lol. Thanks for the food for thought.