OK, good home right here!

just red full post
good luck with new carbs
i couldnt give up, i would need to no problem
my guess is the casting is pooruss/tinny little holes
was once blocked, carby soked and cleaned now leaks
had this prob before

I know there is probly a set of 45s on now. But I will throw in my bit cos I would like to know what is wrong. Have you heard of a leak detection machine that injects smoke under pressure into small areas. ie exhausts intakes. I use one of these at work & they work extremly well. If you can get the use of one remove the float bowl cover & fill the ventury up & you will see a small trace of smoke coming up from any small cracks. Did you try a differant fuel supply to elimanate any fuel tank issues?

has a 35mm crack in the float bowl over where the venturi sits, problem found.

Lets just hope that the 45's are the italian made and not the spanish ones. I have heard a few bad reports about them now in reguards to poor casting quality, made from USA's famous 'Cheese' aluminium.

I'm gald you found the problem was a faulty carb. It shouldnt have taken that much to find it thou. A good mate of mine braught 4 webers & manifold for his 65 289cui mustang. When he got them he found cracks in the housing where the idle screw seats. pretty poor I think you would want them perfect for 4k plus. They have been sent back for a refund

They can still find a good home here!

Well, the carb master with one last ditch attempt braught me 2 more race prep'd 27's....

Dropped them in, car runs like it never has before, i think i might actualy have a winning combo at long last,,, not even a drop out the trumpets!!!

Very happy to hear the good news! So the datto will be winning races again soon soon

You bet ya, 1st of august there is the next regionals, just one week to get her totaly ready.