Well, the ol' 4 barrel carter is on its way out. Instead of having it rebuilt, I've decided I am just going to replace it. I was wondering if anyone can recommend a replacement carb for me. I am looking for either a holley or edelbrock that will bolt right on the factory cast iron intake without a spacer. Oh BTW, this is for a 1965 Lesabre with a hi compression 300 SBB. I was also wondering if I should go with a 600 or 650 cmf carb. Any input is much obliged.