Sounds awesome Soddy
Not trying to thread jack, but I thought you found out that the heads were Ford aluminum heads Sleeper?
347CI Forged, with forged internals. Lunati Cam, trick flow track heads. Ford Racing GT-40 Upper and lower intake manifold, B&BK 76mm Throttle Body, B&BK CAI, B&BK chrome equal length headers Off road 3" H pipe, Diablo Chip, 3:73 New Brand New Rear End, Tremec TKO T5
Go measure your stroke, I doubt someone spend all that money on a forged internal 347 and put a GT-40 intake on it...and Modest Mouse? Really? lol