I just bought a 69 Merc Marauder X-100 Is pure stock except for Performer RPM intake Is running a 600CFM Holley I,am new to Ford's have been GM for the last 40 years Pontiac & Buick. Trying to find out which Edelbrock carb is best suited for the 429 with that intake. I don't think 600 is enough The car itself is cherry as hell. Said to be one of 161 of 5600 X-100's still registered in the states. I would really appreciate the information. Thanks.