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Yup. I would look at the plugs first. Instead of just looking at the oil, you could send a sample to be analyzed. And 17 years is a long time no matter how you look at it. Lots could go wrong.

Check the oil on the dipstick. If you forgot the drain plug, it is all underneath the car. Ask me how I know.

With headers and 9.0:1 maybe in the 415hp range. but I'm just guessing. Cam may be a little much. Download the CamQuest6 software from Comp. Cams and play around with it a little.

This might help. Big block Duster vs supercharged late model Challenger - YouTube

So..in conclusion, these heads work just as good on the salt flats as on the scrap pile.

I have a set that worked well on a 383. I will improve them a bit, and give them another shot on a bored 440. Just another crazy scheme of mine. Some work, some don't.

I told you three out of about four things you need to know about that head. Just google chrysler closed chamber head. There are only a couple. I answered how I did because you made it sound like you struck gold. Just search these threds for a bunch of stuff about them. If you go deep enough you...

Early closed chamber head. They have their uses. You can put hardened seats in them and larger exhaust valves.

I went out in my shop and checked a few rocker shaft bolts, and I couldn't find any that appear to have the thread damage the one in the pic seems to have. The other visible bolt appears OK so maybe one got torqued a little tight.

If that broken rocker is in the 6 hole then that would explain why the exhaust popping stopped. I have no idea why it would have a lot of oil in it though. Under the right circumstances I could see it sucking a little oil if the intake rocker was broke. How it could run so well...still a...

Well...keep us up to date. I'm a little skeptical. With the rocker damaged, maybe even the push rod also, not only should it have run pretty lousy, you should have heard it.

^^^If that is what happened I would have that head off, apart, and closely looked at.

The popping may be a bad exhaust valve. It may not pop anymore if it is in the #6 hole, which probably isn't firing. How it could run great with an oil soaked plug is a mystery.

I will concede the cool factor, the look is great. The cool factor and the torque numbers aren't gonna solve this. I think the answer is in this thread already, but I would like to know the answer for certain. So many of these threads die with no resolutions posted.

Yea, if he is trying to start something he is right at the cusp. There are better intakes than cross rams anyway. Model V8 engine electronic fuel injection - YouTube

I don't know, you said all the plugs were fouled.

Didn't have 10.5:1 compression either. A 440 maybe and a couple of small blocks. Hogan, we are gonna need some info here, like what Rusty asked for. You may have float problems, or fuel pressure problems, or ignition problems, maybe a carb leaking internally, the list is long. Plugged air...

I don't. Matter of fact I take the chokes off all my cars. I don't even know what carbs it has, or anything else about it, so I just start at the beginning.

Well the simple thing is check for a problem with the choke.

Did it do this before the carb re-build? Having a problem understanding how it could run great with gas fouled plugs.

Pull the plugs and have a look. Probably tell you all you need to know. Vacuum gauge could turn up some useful info also.

I have numorous big block heads. You might convince me to give you a pair if you can figure out what you want. I have no idea what heads you have. They may be the ones with the extra cooling holes drilled in them. If you use that type get the right gasket.

Your only hope is to be nice to some girl who has a healthy stash.

Ya gotta start somewhere. I figure you will land up re-doing the carb for sure.

I could be wrong, but 902's were used on motor homes also. There were some made that had an extra hole drilled in them to get more coolant flow. Somewhere I have a pic if someone really needed to see it. Never heard of the cracking issue, but hey, they all crack. If you have the heads with...

OK. I've had it. The governor is gettin' bypassed and the tank is full of O'Donnells 20%. Let's rock. At these speeds a road draft tube is all I need. And I'll take out that that pedal car with my surrey with my gal sitting in the front seat.

And I,m gonna take out that Ferd with my Cobalt soon as I put a big muffler on it.

Anybody wanna race garden tractors?

Yup.^^^ . Seemed that way to me, but hey, if its solved time to move on.

Well...what did you expect? It started out with some clown rolling down the highway with smoke rolling out from under the hood. Then it progressed. Still no details on the exact fix.