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Smoking after valve adjustment


Model: 911, Year:1966, Mileage:100000, Type of use:Street use only
I have a 1966 911 2.0. I recently adjusted the valves and now there is smoke coming out the exhaust. On a scale of 1 to 10 with a mosquito fogger being a 10 and cigarette being a 1, it is smoking; a 7 on start up, a 1 accelerating and a 4 after warm up at idle. I followed the procedure in the 101 projects book. It smoked. So I adjusted them again. It smoked again but not as bad. At the same time I also replaced the internal fuel filter in the facet canister style electric fuel pump, replaced the inline fuel filter, adjusted the fuel pressure regulator from 5 psi to 3.5, replaced the fuel lines to the carbs, changed the oil from redline 20w-50 to brad penn 20w-50 and changed the spark plugs from Bosch WR5DP to W4DPO. When I replaced the plugs after the first attempt the ones I pulled out looked good with the drivers side bank being darker than the other. After the first adjustment and 5 to 10 miles of smoking I pulled the plugs again to re-adjust the valves and this time the drivers side plugs were black and the passenger side looked new. I let the engine cool overnight the first time and for several days the second. I used the .004 feeler gauge with the replaceable blades and changed the blade after each side. When I purchased the car 5 years ago it had a recently (less than 1,000 miles) rebuilt engine. After driving it 500 miles or so had a local shop adjust the valves and change the oil. I changed to the redline oil the following winter. Any advice you could provide would be greatly appreciated.

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