I advanced the timing on the ip about 1/8 off the to lines. It does not smoke like it use to and runs better. My question is can i advance it a tad more? I do not have a temp gauge for exhaust.I just dont want to burn anything up. I use this truck daily for my landscaping business and it pulls a 18' trailer with tractors. It does blow black smoke on take offs and up hills but nothing at idle. Just trying to get a tad more power.

Not sure if i should start here but its a 87 f250 with 6.9. It has original injectors and IP. Should i change these first? would this help with power?

Thanks in advance

 

how many miles on fuel system?

 

193,000 miles

 

pump is probably getting tired, advancing it would make it feel better but, dont go to much, 1/8" at a time and mark your starting point so you can refer back to it if need be.

 

1/16th at a time might be safer, so you would be less likely to have to back it off after advancing. You want it to rattle just a hair more than normal when the cold advance is on.

 

its time for a set of injectors,rebuilt ip and then set the timing.it's about time for it's second refresh actually lol.
she's a money making truck.treat her right.you'll not only see increased performance,but fuel economy as well.

http://www.oilburners.net/wiki/tiki-...hp?articleId=7

 

Thanks everyone for the info. I have no complaints with the truck other then the dents..lol...How would i know if timing is to advanced? I really dont hear the rattle sound when cold timing is on. Just dont want to burn anything up. Thanks