The gm engine warranty is void also if you do a cam swap or any other internal performance mods. The gm base 350 with 290hp is about $1800 or less from jegs and summit and they ship for free. Installation needs to be done at a dealership or a certified mechanic. There's a lot of crates for sale that are turn key. Best of luck to you. I think the base 350 is plenty for a cruiser.
