[nbturbo]

Have got it running but having issues getting the idle fuel map correct.We have manage good readings thru the rest of the rev range,but can't get the idle A/F ratio low enough.Ended up buying a TPS switch that fits the T/Body and is adjustable-just needed to redrill the holes in the T/Body to get the idle voltage correct.Mounted the temp sensor in the blanking plate that goes over the original Type4 fuel pump mount-not in the oil but getting plenty splashed onto it.The ECU I am using is Delco which needs a good idle vacuum reading-which I don't have because of a mild cam and dual 48mm throttle bodies.Initially we thought we could get around this,but not so because the vacuum is too low and fluctuates badly.I have now made a small vacuum canister and put one way check valves in the 4 lines and it now idles at 12'' HG and is very stable.The poor vacuum was also no good for the fuel pressure reg or the modulator on the Auto Trans.I was running 20.5 Lbs/hour injectors and have changed them to 18.25 Lbs/hour and it's running real sweet with just the normal 4 cylinder chip.Waiting for the bloke to come to do a new chip for it which should be an easy one for him now.If it is still slightly out,can do a fine tune by using the TPS switch for an idle signal as well.I had to make some new airfilter bases because they had to be offset to clear the fuel rails.Milled them out of some 6mm ally and used my original Weber filters and tops.The first fuel rails didn't work(my first effort with the TIG)because I didn't put enough weld on each end and they leaked.I had the fuel pressur reg in the end of one rail,but it was a pain to fit and not leak,so I machined an alloy block and fitted under the car directly into the return line.I have the MAP sensor under the car as well,so all the vacuum lines are out of sight. I will put the small alloy vacuum canister under there as well if it all works OK.When I made the next fuel rails,they got plenty of weld and I pressure tested each one with 110PSI in a bucket of water-all good now.