I would too. I am just not that sharp to sort out making a 2300 Holley progressive like the 2305. Although I have tried to turn one of those 2305's up used, no dice so would be very interested in how Tom did it. I am with the others, I put a single Holley/weber on a 235 and it is not enough carb. I have two on my 235 and they run a lot better than two singles but still pretty small. Three might do it but two holly 2300's would be easier to deal with. The 350's are probably about 280cfm at the four barrel rating for something like 560 cfm in a two x two configuration. Not too shabby and to have them progressive would go a long way for drivability.