Ive had 3 different carbs on it. 2 Thermoquads, and one 600 Edelbrock. The Edelbrock did have a bit more low end and pulled maybe 1" of vacuum more than the Thermoquads. Also, I forgot to add...I did advance the cam 2* to 104 and the only thing it did was kill my gas mileage. Im drawing a blank here
1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)