I have a q jet 7040205 FH for my 70 Chevelle SS 4 spd car. Box 18 on my buildsheet says EH. What do those letters designate??

thanks

Richard

The codes, I believe should match if it's the original carb. My original q jet is numbered 7040504 with an FR code on both the carb and in block 18.

sure the "F" isn't an "E"