[dirttrackracer25]

i just checked my cyl's and they are around 155-160. i run this car on dirt track. i advanced my timing to 18-20 degrees does that sounsd about right advancement to get max horsepower at higher rpms? thanx in advance

 

[dirttrackracer25]

how do you know how many degrees you advanced it?

well it counts by 2's on the meter with timing light then just kinda eye balled it. it seemed to work well i race this car on dirt and won my race by almost a half a track....lol

 

[dirttrackracer25]

that's pretty low. my old beater had ~180k on it and the compression tested around 175psi.

just to make sure you're doing the test right... you removed all 4 plugs, unplugged the grey 4-wire plug from the distributor, and cranked it with the throttle wide open... right?

i just pulled each plug at a time kept 4pronge unpluged and cranked it over and the engine was cold it bounced between 125-165