intake manifolds

crackedback said
The LD340 is absolute junk and you need to box it up and send it to me so I can properly dispose of it.

According to everyone I've spoken with, from Barton, to Ede techs that know the LD from years gone by, to my own experience... If you have an LD 340, save your money and don't buy an Air Gap. The difference in performance is about zilch. Sometimes old tech is just about as good as new tech.

Don't touch the Performer unless it's the RPM one. You're better off with a cast iron 70 340 intake than a standard performer.

If you still want to switch out manifolds, please let me know. I'm looking for an LD340 for a Duster 340 car.

Thanks

moper said
Everything stated here is dead on.

I agree with the 2 above posts, lock stock and 4bbl.
No on the Performer, it has small (318) ports.
The RPM should be an air-gap even more so if it's more performance drivin. The regular RPM has the heat passage under the carb. Super Great for cool/cold weather street machines.
The MoPar dual plane M-1 is no slouch of an intake, but I would only use it in certain rare cases. It is a copy of the early 340 intakes in aluminum.
The M-1 single is a hi rpm part. Hood clearance is an issue.

Actually, I have a LD-340 (And a RPM-Air Gap) with the MoPar mods and port matched. It's a screamer of an intake. Love the big T-Q on top. Sooo, since you'll not be needing that, throw it up in the air like flowers from the bride and I"LL grab it first.

The intake can sell for about $200. All things dependent.