I absolutely LOVE polys... i got this car from the original owner who parked it in 1978 and it sat in a garage ever since (no mice in it... amazing) but for some reason he pulled the plugs, i scoped the cyls and just surface rust.. was almost gonna do a quick re-ring/bearing and run it til i pulled the intake and that sludge from sitting so long is now like cement. Soo.. i could put a ton of money into building a motor you can barely get gaskets for or have fun with something i can modify a lot easier. not a hard choice :) I think off the poly i will end up using the oil pan and that's bout it.