Originally Posted by beaver.cleaver

Yes it will fit straight onto your set up. It is a 525 Mercury racing set up originally. I just built a bigger bottom and now i'm upgrading to twin 4lt's. the core is only a few hours old. With the bigger motor the 3.3 wont make the boost i want to run. It max's at 8lbs and i'm wanting to run 16lbs. I also have a full set of Injectors, hydraulic Cam, lifters and Valve springs to suit this set up to complete the kit. I will throw all that in for an extra $1000.00 to help make a quick sale.