TCLade

I'm still at it....

During the rebuild, I replaced the thermostat and since then the gauge sits at 1/4 where as before it settled at just over halfway. I think it may have been a cooler rated thermostat.

Which is best (Northern CA) and would cooler engine temps cause the symtoms listed below?

After a recently blown head gasket, I replaced the head and cam with uprated parts from Ted @ Engnbldr on my 86 carbed PU.

The engine runs great – mostly – it will cruise at 80 all day long and pull strongly, especially in the right rev band. If I try and accelerate in a gear slightly too high (4th @ 40), it will hesitate and miss.

Its worst on the over-run. Cruising downhill, off the gas, try and pick it up again and it really stutters

If I tap the throttle form idle, it hesitates and then picks up.

Before the re-build, everything ran great.

It’s got new plugs, wires, timing chain, filters. Cleaned all EGR parts and checked the routing (repeatedly) of the VAC lines. All ground wires are in good shape.

Timing correct and AAP checked.

86 TOY

Bump to the top for you, hope some can help you out. I also have a '86 22r P/U and looking down the road to do the EB head and cam like you did.

Wish I could help...

xxxtreme22r

just had this problem this weekend with mine, even with the brand new e3 plugs I just tried it ran like this, went back to my old plugs all it well.

TCLade

Problem Solved!!!!!

I put a 180* stat in by mistake - a 195* solved all the problems! Thanks guys.

xxxtreme22r

hmmm that's interesting. can someone explain to me how and why that worked? engine running colder so it isn't burning fuel as easily????