I just purchsed a 454 heh heh and I would like to build it up right. The previous owner couldn't verify a few things that I would like to know, like the compression ratio, how can you find out or figure it out? The block has the recriprocating assembly done so I will probably leave it alone. Heads are on but not torqued. May back off a rod cap or two just to check the bearings out. Pull off the heads and look inside. It came with a Torquer mainfold, is that a good choice to use? It has a double gear timing setup and a new cam gotta find out what it is though. Guess I will have to do that by removing the cam and seeing if there are any # on it. Unless you guys have any better ideas. This motor will be placed in a 86 Blazer. It will be equippedwith 1 ton axles and 44's or 42's. It will see some extensive use as a mudding and rock crawling truck along with being the shop mascot. So I am open to ANY suggestions. Help me build this thing right the first time.