I think you need to have another look at the timing to make sure it is getting full advance. Also does the truck still have the stock exhaust on it? If so that has got to go.

 

I put a light on it last night it's at 14 degrees and I reved it at the carb with the light on it and at I'd say around 2-2200 it was advanced to 30 degrees and I revved it up more and it went past 30 degrees. It revs up to 6,000 no problem in park or neutral. And yes it has stock manifolds and y-pipe to a 2 1/2" pipe hollowed converter 1 in 2 out flow master 40 series and 2 pipes out the back

 

Also what shift kit would you recommend I use on the tranny I think that's whY it won't get the rpms past that mark the transmission has been slipping for awhile and just recently it won't shift out of 2nd hardly unless I 1) stomp the pedal and hold it down until it finally hits 3rd who h is around 4-4500 or drive it awhile and keep putting it neutral and drop it back into drive and sometimes that works. So that's why I'm rebuilding that getting parts today bi I know I don't need a towing kit so would a street/strip be a good one? Also I'm not concerned about gas mileage because its never gotten good mpg and I don't drive it very far I'd say 4 miles a day 2 miles to work 2 miles home. That's about it. Anyway thanks for the advice I have learned more about my truck from you conaski

 

Yeah that's no good, get some headers for it and ditch the stock y pipe and put duals on it if you can't build a custom Y pipe. When you rebuild the trans put a transgo shift kit in it, stage 2 will make the shifts form but not too stupid.

 

I got the trans go sk6 shift kit. I read the instructions on the kit and I don't understand how to make it a level 2. And it also says not intended for hotrod shifts

 

Ok I got it done. The c6 is rebuilt but I didn't know about the intermediate band servo being rubber so I have to get a new one tomorrow. Also you said the stage 2 in the destructions it only gave me an option on the 3 green springs well my valve body only had the outer and mid in there stock so I put just the outer spring in. I hope that wasn't a mistake. But I checked the stiffness of old and new outer and mids and they were about the same just the new one was a little weaker.