Well big thanks to sikyne! I owe you few beers .
New manifold on with a few headaches and some of his perfectionist skills coming to the forefront.
Well did a run to see what car was like as is. Was a bit of a dog with me driving around its issues. Made 46kw at 5300rpm or thereabouts. I thought crap a15 made 47 on twin Su Lpg. different dyno different day blah blah blah.
So spent half the day mounting plenum manifold. sikyne made brackets added head studs on head instead of bolts and stuffed round with cable length and air filter.
Dyno graphs to come when Sikyne sends them but straight out it got 50kw lol. I was still gutted on figure but I figured Cam make improvements later on.
After adding timing and turning idle etc and a fair few runs got 53kw. Main thing was that power and torque curves,leaned out at 4300rpm. Then richened up again. Signed tuning got them pretty much as liniear as they will get.Car feels alive. Crisp throttle except low rpm (that's the gas set up and mixer etc on there currently) bit then.its great.
So much more driveable and responsive.Few things to do like a compression test and better power adjustment valve. And go from there. Gear box still made weird sounds. grrrrr my bug bear