I got to looking at the heads on my motor and they seem to have different numbers on them. On one there is GM 4 and the numbers 462624 and on the other GM 1 with 462624 but also have K 167 on it. Kinda lost about tracing these and finding out any history on them. Any input in this area would be greatly welcomed. On a different note I got my 1.6 roller tip rockers on and they seem to help with the low end take-off. But they are also making the motor a little thirstier, but guess you have to take the bad with the good.
Anyway, if someone could tell me if my heads are just plain jane stock or not would really be nice. Thanks to everybody with any thoughts