I think it was an offy and the carbs looked like about 450s just from the outside size. I talked to the body shop guy while I was waiting for the tow truck yesterday and he used to have a 2/4 on his goat. He said it ran about the same as his 850 holley until it got to 100+ then you could start to tell the difference. He also said it really sucked the gas( yeah what ever). But they look so cooooooool. Easy enough to drill out the water passage. Not a prob. Brought baby home after surgery. The panel came out SWEET. Looks like it's always been there. I have to replace the little rivets that hold the molding clips. Going to take guts to drill hole into a brand new panel with no holes in it. After all that's why I replaced it in the first place. Thinking about just glueing it on. Robert