Carb replacement

ericcarr2000

Ensign
Joined
Mar 19, 2010
Messages
903
Ok guys. I have a pretty much stock 90 7.4 mercruiser motor and was thinking of replacing the outdated quadra junk carb with an aftermarket one like a Holley or a edelbrock. I guess the question I have is does anyone know what cfm carbs are on these motors and what someone recommends the replacement cfm be?
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,415
Ayuh,.... The 1410 Edlebrock is an exact copy of the Merc/ Weber carb used by Merc at 750 cfm,.....
 

ericcarr2000

Ensign
Joined
Mar 19, 2010
Messages
903
Thanks bondo. Would it be equivalent to a double pumper from Holley or a vacuum secondary?
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,415
Ayuh,.... I answered post 3 in post #2,.... 'n I don't do Holley carbs,....

Rochester Quadra-jets, 'n the Carter clones, Edlebrock, 'n the Merc/ Weber are vacuum 2ndaries,....

I don't like the fore, 'n aft fuel bowls, rather have side by side fuel bowls, considerin' boat motors are Never anywhere near level,....
 
Top