I'll make the pitch for the TFS heads, I've run a set on a '86 5.0 flat top piston motor(no dish or valve reliefs, and approx .003 out of the holes) since '99... That engine made approx 350 Hp, with the TFS Stage-1 cam, 1-5/8" headers & full 2.5" exhaust system...
Although this chart is a little dated, take a look at the flow numbers; http://www.carbdford.com/tech/flowdata.htm
it looks like this car has been for sale on ebay: http://www.ebay.de/itm/Mercury-Come...rd-Race-Way-Winner-EU-ZULASSUNG-/251426194255
Are you bored with it? Not enough power? I didn't read the whole thread.. but can only guess that if you had wedged that 460CJ in there when you had the chance?..you probably wouldn't be thinking about selling it.
No, I am still waiting for my parts to come from USA, while waiting, I have bought a Mustang and my Vetta was finally finished, so a Comet stopped to be so tempting but who knows what will happen
Lot of things have changed from my first post, I have finished my Comet, build 3 Mustangs and had a lot of fun. This is how my Comet looks like right now: