What sort of HP is your engine doing @ the fly? Sounds rather mild. I can remember a thread about it but can't remember details. I can rememeber the statements regarding tyres though. Torque is fun
An 2v AFD headed XD that I chatted to is running 10.58. Your Capri will go faster yet if it's not too mild and sorted traction wise.
I hope to help a mate build up his 72 GT Capri if he every stops spending on his other cars? I think it'll be a bullet. I want to see what he can do untubbed etc. I gather yours is untubbed too. I admire that.
Keep us posted
 Just searched and found the thread. XBWGN ran up 252rwkw with the cam your running and runs a 3500rpm convertor which seems to work well with it
So whens the new convertor happening? If at all? You'll kill your pb with a larger stall.