??????CAN SOMEONE TRANSLATE THIS??????? it makes very little sense to me! HEI? MSD 6al? catco cat? I've no clue!!

- HEI - High Energy Ignition. Gm's name for electronic igition where the coil is in the distributor cap.

MSD - Multi Spark Discharge (also a company that makes ignitions). Stock ignition systems make ONE spark to fire the mixture. MSD ignitions fire multiple sparks very quickly to fire the mixture.

6AL - a model of ignition made by MSD. Go to http://www.summitracing.com and search on MSD and you will see that they make many different types of ignitions - some you can set at what RPM the ignition cuts out, etc.

catco/cat - both shortend versions of catalytic converter. installed on 99% of gasoline cars in teh USA since 1975. looks like a muffler, costs lots more. assuming a proper fule mixure is burnt, the exhaust then goes into teh cat and using catalyzers (metals, and other chemicals) the exhaust is scrubbed clean of some pollutants. IF the car is running too rich, you will smell sulphur from the exhaust (rotten eggs). Also, the cat will overheat and melt down.

NEXT!