[Redta]

Not to hijack the thread, but I have a question. I am building my 455 and it will have the KRE heads. The distributor that I have is a Mallory Comp 9000. The paperwork says it has 24degrees of advance. So to get 30 degrees total timing I will need to run 6 degrees initial timing. Does this sound reasonable?

[Ken C]

Originally Posted by Redta

Not to hijack the thread, but I have a question. I am building my 455 and it will have the KRE heads. The distributor that I have is a Mallory Comp 9000. The paperwork says it has 24degrees of advance. So to get 30 degrees total timing I will need to run 6 degrees initial timing. Does this sound reasonable?

Redta sounds correct. Best to ask Jeff best way to set up your Distributor he is the expert in that end.
Ken

[tom s]

Ken,the only tuning we did was on timing.We tried everything from 30 to 38 with the 91 gas.The motor liked 34 the best.Exact same setup except iron heads and 9.5 CR,that combo liked 38 the best.I think the small chamber KRE Dports are diff from the larger chamber Dports.HP was almost the same,480ish for 434CI.Tom

[70 lucerne lemans]

Redta,you can adjust the amount of advance in the distributor.Mallory sells a kit with "keys" that you use like feeler guages to set the advance.It also comes with springs to adj. the spark curve.Depends on your combo how much initial timing you need,but Im sure you need at least 12* initial,mine liked 20* minimum.I ended up locking mine out at 30*.