well 17 tanks through the 7 port as per instructions you gave me, had a go at tuning it, very good both bottom and top end with loads of smoke, stand at idle when hot for ten seconds then accelerate and it flies, done the fuel line pinch test and it raises rpm slightly after 5 secs and stalls, engine seems great runns about 220 deg f. Thanks for your help and advice, running in was a breeze and would have been totally wrong with the tuning,