I have a 1987 Merc 340 h.p. MIE. I'm planning replacing the Q-Jet 4 bbl. with an Edelbrock 1409. I know that I'll need the Edelbrock adaptor but in order to keep the carb "level" it looks like I'll have to keep the original Merc wedge. Is that correct? Also, the holes for the throttle cable bracket ar not going to line up with both of the the studs for the Edelbrock. I can get it on one stud. Anybody dealt with this issue? Thanks.