I think edelbrock used to do inlets etc for these so should be able to fit a holley carb etc etc. Or triple webbers or something similar. It will have good silencers as obviously being a hearse it need to be discreet. Id say a single silencer system in your tina should have it sounding fruity

With regards to the above poster about the 3.0 engine. Im almost 100% they never fitted the 3.0 into the mk2 granny as standard. A cousin of mine had quite a few and they did do a carbed 2.8. In the ghia and ghia x. They also did the injected model too in the slightly later models i beleive. same sort of time they brought out the sierra xr4i

Here's one with a carb fitted and K&N filter