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is the show car a roller cam? I'm not sure if roller setup blocks can take flat tappet cams, but I would think that if the lifter bore is the same, then as long as you keep your lifters in order you should be able to change it. make absolutely sure you keep lifters in order though.

Most likely, just changing carbs will not gain much for you, unless your stock carb is very restrictive (which is possible). However, the gains you can get come into play since you'll likely have to change intake as well, and will be able to use a better flowing intake. Beyond that, basic...

I likes me them sigs too, mmmmhmmm. :D

Was thinking valve stem seals as well. Also PCV isn't a bad thing. It actually can improve performance a bit, as a vacuum in the crankcase means less air for wind resistance, and can help rings seal better as well. Just an FYI.

Ford F303 Hydraulic Roller

I've got 1.7's on my F303 with stock bottom, no issues. I did have to get a different length pushrod though for correct alignment.

I recently changed my EFI mustang back to carb with MSD ignition, to save some money and go for a more simplistic approach. I researched, and found the best stock type distributor to use was from an 83 Bronco 5.0, which is a Duraspark (magnetic pickup, same as what MSD dists use), making it...