It's been a while but here is an update.
So the 40's that was bored out to 48's had some major problems, and was some how feeding the engine on idle, with the idle mixtures completely shut off and the carbs made the car run very badly. So I opted to buy a 2nd hand pair of 45's (supposedly) rebuilt, and I popped in the jets ect from the 48's and the car ran so much better! When it's cold, it does run like a bag of *Bleep* and does pop and bang and spit badly, until it's warmed up then it just spits a bit out of the trumpets.
Now some more news! I recently purchased a 3rd GT! I've been after a HB with a V8 for a very long time and I managed to get hold of one but it was a GT! It's been off the road for 20 odd years, but body wise it's in very good condition! The only welding it needs is the spare wheel well/ drivers floor behind the accelerator pedal and passenger floor about 4x2 inch patch.
I'm absolutely in love with the new GT and I'll try to get some upto date pictures on here as soon as possible.
photo sharing