Hi
Thanks for responses, there is nothing wrong with the current tubular manifolds and exhaust except it does not have cats, and whilst it runs on log that is not too much of an issue and the motor runs very well, I just wanted to return it to standard before I put megasquirt on it. I understand the vehicle is some 23 yes old and the cost of doing this would seem extravagant, but looking at another vehicle that would comfortably tow a caravan would mean spending a lot more especially through depreciation and possibly having to go diesel in which case I would rather walk.
Local Kandy specialist told me not to until I have to remove the heads anyway, so will do that. The block is a turner top hat remanufacture so hopefully that won't be soon.
There is a 'tornado' chip in the prince of darkness ECU, could this be causing an issue?
Cheers, Hamish