i just did a rebuild on my 87, and it isnt going to well right now. i put in a new high performance cam, heads, intake manifold, headers, and exhaust. it started off backfiring and spuddering. it wouldnt accelerate at all. then last night i was driving and lost complete power. does anyone know anything about how to fix it?

 

Dude we are gonna need to know a lot more than that. What motor is it? Did you rebuild it yourself? Have you checked the timing?

 

its a 305 with a tubro 400 tranny. my dad and i cleaned it down to the block and rebuilt from that. we checked the timing. its good. im trying to figure something out without having to pull the motor again. my next guess is that the valves are too tight?

 

I don't know as far as that goes. Haven't rebuilt one myself yet but there are several guys on here that could help you. Probably all still at work right now though. Is it fuel injected or carburated?

 

TBI

 

Figured it was, just thought I'd ask. Have ya'll checked the compression to make sure everything was right? What about vacuum did you check that?

 

Have ya'll checked to make sure you didn't leave any sensors unplugged?

 

yea. we did a compression test before we pulled the motor. i was running 200-220 psi STOCK. i did the test again last night because i thought i might have a valve problem, and i was only running 120-130 with the new World Performance Torquer heads. idk if thats bad or its the new heads.

 

Make SURE the 2 grounds at the front of the intake are seperated...if you put both grounds on one stud,she'll power down

 

i took the truck down to the shop, and my luck i had a downed battery. got that fixed. a friend came over and tomorrow we are going to check the distributor to see if everything lines up. maybe a tooth is off...?