new to me 68 Barracuda Conv, sluggish 318

Hi All,

So I just picked up a 68 Barracuda Convertible. I am new to the Mopar world, but to me the engine seems quite sluggish. I am first in the process of changing out all the fluids and starting fresh along with new plugs, carb cleaning.... Next will be to check/set the timing.

Here is what I know about it:

• the 318 engine(3spd auto) was rebuilt around 1997, about 17k miles since then
• at the time 340 J heads were put on along with valve job etc, but I can't find any evidence of any porting etc
• It's got a Edelbrock 318/360 Performer Intake and a Edelbrock 1405 4 barrel carb
• Dual exhaust. no headers

I am not expecting it to be a speed demon, but it just seems super sluggish. I haven't really laid into it yet since I haven't checked everything out, but what would you check or think might be the culprit for the lack of power?

I know compression may be an issue related to the 340 heads, which I'll get checked, but I would think even with that it should still have more power. It almost feels more like a V6....