This is actually my first post and also first time experience with the 426 hemi . I've had RB & LB based engines making lots of power in the past but never the hemi . I just got into a 68 rt 4spd car with A freshly rebuilt hemi to factory specs . The only additions are edelbrock (I think 650cfm) carbs and an msd distributor . I didn't want to open the engine up and was looking for easy / easily revers-able mods to boost power . I was thinking along the lines of headers , msd box, electric fuel pump , anything else ? Also was going to put 4.10s out back . Any help / advice is appreciated . Thanks