there ar eplenty of good recomendations here, like the clutch fan but i was waiting for some one to recomend the thermoquad. i have to say if you are going to run manifolds, well you might as well ditch the single plane intake and go with a performer and a TQ or have a performer rpm modified to fit the tq. try the thermoquad guy here on the site demonsizler or something like that, see what he has to say about a carb. when you get it all figured out look into a 518 trans.