Originally Posted By: gbauer
I believe a 1974 250 is non-integrated.

I checked Langdon's site and the split header is out of stock. Surprising! Give him a call, though, as that's what you really want.

From there get an Offy intake: https://www.summitracing.com/parts/ofy-5...ASABEgJiJPD_BwE

(you can find them anywhere. Try Ebay as well)

A Holley 390 CFM 4 bbl: http://www.jegs.com/i/Holley/510/0-8007/...AyABEgIrc_D_BwE

OR

http://fitechefi.com/

Then add in a cam, HEI, and exhaust system.

Odd that I can't find a Langdon header anywhere right now.

She'll wake right up then. About 200-225hp, 225-250 ft-lbs. Add in the right gearing and trans and she'll move along just fine. My old 68 Camaro could run circles around my buddy's 100% stock 68 327 2bbl car.


Yes, mine is the non integrated head, I think that started in 75?

I seen folks using Langdons, and thought they looked nice, and a little sturdy. I see now that 12bolt has them. He might have bought their stock up from them.

I didn't know Summit sold stuff for the 250, as in high performance stuff.

Would the 4 barrel be too much for my 250, without having to rejet it? I have only taken one barrels apart. And for a cam, I have done V8's, but never messed with one of these. I'm going to have to do some reading. It's very easy to get to everything on here, which is nice, but I am lost with the cam.

WOW! You were running around a 327, thats actually impressive! I was told by a friend that these 250's can take a beaten and keep going. Supposed to have a strong bottom end. I don't beat my car, but occasionally like to step in it a little.

I would be thrilled with 200hp! I seen that CLifford performance kit, and didn't know if they were any good. It is a 2 barrel though.