Changing intakes

I found me a 64,65 2x4 intake for a 273 and was wondering how hard it would be to re-do the bolt holes to make it fit a 66 273,I know they are smaller and different angle i have read where you just drill them out to fit the bigger bolts is that right or what do you have to do.I can get it cheap and i like the looks of them.It's not a tunnel ram just a flat intake but it's in good shape.Thank's for any help.....

Hey Hippy 60, Slantsixdan is correct, I just took at look on the wanted forum and saw three or four requests for the 65 x4 intake for the 273 those odd bolt holes make it rare and to retrofit it to another year would be a shame. I will need one myself at some point but haven't got to that point in my repairs... But if you want to sell it, PM me a price, I might find the $$ somewhere.

65Cudafix