I'm going to be swapping the cam and intake out of the car soon. I'll be going from a 390/410 lift cam and stock LG4 intake to a Comp 268XE 477/480 lift cam and the Weiand Stealth intake.
Will I need to readjust the AF screws on my 600 Edelbrock carb? If so what's the proper procedure, I thought I read somewhere once to hook a vacuum gauge up to the carb and do it that way somehow.

Thanks.

 

Yes your going to need to readjust the AF mixture to get the best results and possibly re-jet or at least swap springs. If you use a vacuum guage your supposed to turn the A/F mixtures "edelbrock" clockwise until you reach peak vacuum then turn it up to 1& 1/2 turn more. Since you have an edelbrock just max the screws clockwise and then back them out 1, 1/2 a turn each. This usually gets a edelbrock very close, at least it will give you a base setting to tune from.