33ndn

[Tom DiMaggio]

New to the forum working on a 33 Pontiac sedan with a1968 400 in it with tri power having a problem with finding what the timing mark should be any help would be appreciated thank you in advanced 

[TWO LANE BLACK TOP]

Would like to possibly answer your question if I can....Could you be more specific on exactly what it is you're looking for..??

Finding TDC..advance....retard...total timing..settings.. dwell...Does it still have the stock cam...ETC..

TLBT

Edited February 24, 2020 by TWO LANE BLACK TOP

[Tom DiMaggio]

Sorry I don't know I think it is a stock cam I'm still researching everything all cylinders have between 112-120 compression it just doesn't have the power I think it should have

[Last Indian]

On 2/24/2020 at 6:23 PM, TWO LANE BLACK TOP said:

Would like to possibly answer your question if I can....Could you be more specific on exactly what it is you're looking for..??

Finding TDC..advance....retard...total timing..settings.. dwell...Does it still have the stock cam...ETC..

TLBT

 

1 hour ago, Tom DiMaggio said:

Sorry I don't know I think it is a stock cam I'm still researching everything all cylinders have between 112-120 compression it just doesn't have the power I think it should have

Tom, what Two Lane ask is relevant and those readings are adequate, but not great! The fact that you have that much variation between cylinders indicates a deficiency somewhere. I would recommend you do a leak down test! This will start to help you determine if it’s valves, seals or rings. So for right now I think you need to answer those questions first. Once those are answered let us know what you discovered. We can than help you with further steps forward.