bleh need help

ok guys i got bored today got my truck running, over heating issue completely fixed for good drove it around for about an hour and a half and never over heated.. but my temp gauge wont get to normal temp and when i rev it the temp gauge jumps down and slowly comes back up... only when in neutral tho..(swapped in tach cluster and gas gauge dont work either).. anything?? its also idling at 1100 rpms but im 100% sure i got a vac leak and i think 2 or 3 are not in the right spots, the vac diagram on the site is different from my truck.. im missing two things (vac sensors) on the pass fender wall that show on the diagram so if anyone can get me a pic of they're vac hoses i would appreciate that i have a 87 b2000..


runs great tho needs a new exhaust and i need to adjust the valves even tighter cuz they are so clackety at stock lol...

you take the cluster out of a different truck? if so i did this one time and it did the same thing to me not sure why, mine had no tech and i put one that did in and half the thing didnt work

yup different pin out I thought

so you need to repin one of the plugs?

well the gas gauge works now.... lol.. a t-line for the vac lines broke dang it lol.. yeah i didnt have a tach but the gauge only does that when in neutral and rev if i floor it in 1st gear it dont.... owell i can deal with it lol