340 Full throttle hesitation

No timing light yet. Im going to be doing it this weekend. Im busy until then. I had the brake booster put on. I like it a lot better. Ive also done the whole suspension, everything under the car is new. Its all new stock except bushings, sway bars and rear leafs that have the 1 inch drop. Also went to the bigger upper A arms with bigger ball joints. E body size I believe.