stoverdr
Cadet
- Joined
- Jul 24, 2020
- Messages
- 7
I bought a vortec 5.7 short block and put on a new intake and carburetor Edelbrock 650 cfm and MSD Ready to Run distributor and coil. Timing is set at 10 degrees BTDC as required. Boat idles perfectly, throttle response is decent but sometimes sluggish from idle. I can hear it sucking air at idle and adjusting the left side idle mixture screw does not affect the idle. Put the boat in the water and it will almost get on plane going backwards. Try to go forward and it sounds like it running on 4 cylinders. No power, won't come close to getting on plane and sucking a TON of air through the carburetor. Any suggestions are great;y appreciated. Been working on this for months.