Fix the bottom end using factory parts if possible. Get a Comp 268-280 cam single pattern are cheap. get a dist dialed in for total by 2000-2300 and get a holley the edel will be a disappointment on the street,Ld or rpm manifold and set of headers with a good exhaust and you will have 13s no problem with a heavy car. Faster use a racer brown cam with 68 stick 340 specs with 112 center