'60s 427 FE 425 Hp side oiler......mpg?

[olddog]

Originally Posted by AC Ventura

I'm not unduly worried about value, other people are. It took me 22 years to be in the right place at the right time to be able to acquire this car. It won't be sold and my kids will inherit it.

Not "Unduly" worried. Hmmm. I take it, it is still a factor in the equation. Plus the ease of staying with the same block.

Originally Posted by AC Ventura

Do you think the 347 can be made to sound like a big block and still keep 17" of vacuum? Or do you guys not run power brakes?

I do not have power brakes. My engine idles around 13-14 in Hg. I have had many people swear my 347 is a big block, when they hear it. Plenty of folks on here will say they can tell a BB from a SB by sound without fail. Personally I cannot do it without fail. Generally BB will sound like they have a fairly mild cam at the London Ohio Cobra show, when compared to SB engines. Partly because you have to go more radical with a SB to get the power, and Partly because a BB will sound milder with the same cam.

Originally Posted by AC Ventura

Is the argument about the 331 being a better set up from an engineering perspective, nonsense?

I think the concerns about the 347 is all theoretical. When a bunch of people who never assembled an engine in their life are sitting around trying to sound like they know something, long stroker engines are junk, but they seem to work just fine.

Originally Posted by AC Ventura

EFI is obviously already installed, but as nothing on it can be used, what's the difference?

I'm not sure it cannot be used. My EFI is from 1989 - 1993 Mustang GT manual transmition. It is an EEC4 A9L box code. You can put a Moats Quarter Horse chip on it, and tune it to do anything you want. Then burn the tune onto a EPROM type chip. If you have an older set up that was Speed Density, but multi port, you can do the same thing, but you have to be much more careful on the cam shaft with speed density.