Searched on my dist nr and it shows 1979 Buick Electra. HEI with the #1103342. Is this HEI slowing down the performance on my GS400 engine?(timing curve etc,etc).Thanks Chatarina
Impossible to answer without knowing the specs of that distributor. Probably in the 1979 Chassis manual. It also matters how you have it adjusted.
Yes,the dist is stock what we know.Sadly one former owner throw the original point dist away 1992 so this was in the car when we bought it.The car is not running bad and accelerate good.But a 350 HEI in a hi-perf 400 sounds wrong to me.
Doesn't matter where the distributor came from as long as the distributor is set up to give the correct ignition timing across the RPM range. You could determine that with a timing light.
A 350 distributor is only a gear swap away ftom being a 400-430-455 unit as far as compatibility goes. Tuning it is the difference between ‘runs fine’ to ‘wow!’. As far as function, power, and reliability, an HEI with good components is excellent. GM really got it right. Patrick
