Bumping for solution, disconnected both headers from the engine and the car is running perfect. Most likely solution is one or both cats are blocked. Car started up and revved for the first seconds and then became heavy and unresponsive. Disconnected headers, no problem, full throttle response.

Started tonight again working on the car, replaced the fuel filter, disconnected the injector lines at the distributor and bridged the fuel pump and checked the flow, even and nice flow but the gas did not smell good enough, smelled old. I disconnected the fuel line from the pump to the distributor at the distributor and ran the pump to empty the tank. Poured in 5 litres and ran that throug, poured in 20 litres and ran the pump for a few secs to get the air out. Started the car and no change.

Did another compression test, now wet and dry on a warm motor, not cold and not at operating temperature. 150-165psi steady in all cylenders, 4 cylenders at 160, one at 150 and one at 165. No change when oiled.

Checked the sparkplugs, 1,2,3 were heavily sooted, while 4,5,6 were somewhat good looking.

The spark plugs, were bought new during this repair process. Have not been driven on. In correct order, cyl 1 on left, cyl 6 on right.


So, being that the headers are two 3 cylender headers I figured it must have something to do with it. Disconnected those and the car runs great, full power and no problems. Just have to empty out the cats or make a new exhaust system, the old one is fubar.