I've managed to tune-up my 76 OMC 235, updating the distributor with a points conversion, added a high-output coil, new plugs & wires. Rather than rebuilding the Holley carb, I purchased an Edelbrock #1409 marine carb. I made a few adjustments to the linkage to the carb, though mainly on the carb itself. While in neutral I have the motor set to run at 650 RPMs. When I shift from neutral to forward or reverse all is well, though when cold, it stumbles a bit (bad fuel I suspect). When I'm attempting to slowly decrease speed from WOT I notice that the boat will shift (rather HARD) to neutral before the motor is at idle. I'm assuming that the electric shift is engaged based upon the location of the shift/throttle lever. If this cannot be adjusted, should I adjust the linkage at the carb to remain at idle for a longer duration? I'm worried about applying too much pressure to the carb linkage, forcing the carb to remain at idle while the lever is moving. Is there some other adjustment that I can make, or a change to a sensor or something?