I have currently in my car a carbed ea82 circa 1985-86, rebuild from the ground up about 5 years ago, resealed when I got it a year ago, el-cheapo seals were used in rebuild, but was assured genuine rings bearings and headgaskets were used..anyway it was cheap and was removed running strong..

so anyway getting to the point about cams..

this carbed block pulls cleanly to 6000+ rpm with no problems whatsoever, granted I'm running an open element filter and my exhaust is far from stock..

Now my buds completely stock carbed '88 car seems to fall flat at about 5k or so..

I noticed that in 85-86 the carbed and turbo blocks shared the same camshafts..

My question is, finally..

In my 88 turbo engine should I use stock 88 camshafts or throw in the 85-86 cams?

The difference is clearly your exhaust, thats the only non-common element between the two.

Noah is probably right.

 

One thing to keep in mind as well..

 

Though the 85-86 carb and turbo cams are the same as each other, they are not the same as the 87-90 carb and turbo cams.. (which are also different than each other).. Does that make sense?

Also, most turbo cars have zero intake-exhaust overlap, or close to it. N/A engines use the overlap for a "Scavenging" effect (The partial vacuum created by the hot exhaust gases expanding out the exhaust port helps suck in more air) but in the case of forced induction, this would force boost pressure (and air/fuel) out the exhaust port.

Noah is probably right.

 

One thing to keep in mind as well..

 

Though the 85-86 carb and turbo cams are the same as each other, they are not the same as the 87-90 carb and turbo cams.. (which are also different than each other).. Does that make sense?

 

Yes it does make sense and what you say agrees with my parts book, but it still doesn't help me determine which cam might work best..I only have cam specifications for 1989..so I don't know what differences the 85-85 cams had vs the later year cams..or specifically the '88 turbo cams..I noticed the specs for the delta cams that some run around here have increased overlap vs the later model turbo cams..hmmm...

87+ cams are better