[samcrf450]

Just make sure you have the cab on and make sure the tranny clears under the cab. I had to trim my mounts a little just so the tranny would not hit the bottom of the cab. I also measure about 2-3 fingers between the firewall and the valve covers. Make sure you have clearance for an HEI distributor if you are using one. I just tacked mine in and mocked it up before performing the final welds. Here are some pics.