The car feels good at 26# boost but its hard to tell spinning the tires============= My old motor needs a new set of pistons and freshend up Ive beat hell out of it for years now and its time. I did put 28# boost to it with 20deg timing the other night Im going to Mission next weekend to see what it will do and hope i dont hurt it I will be trying for low 10,s on 24-26# boost and alky..