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I fully understand the whole tight fit thing...

So, if you were to add 1/4" stroke to the crank, and all else remains the same in the engine, would adding some length to the camshaft duration be worthwhile in order to take full advantage of the longer stroke?

I had the same issue in my 65 A-990 Hemi car back in the day. It took some trial and error with many things that have been mentioned in this thread. Nothing worked. 5500 rpm and it started misfiring. I spoke with Warren Barnett at Barnett Race Cars and he told me to upgrade the wiring to the MSD...

I ran the Racer Brown SSH-44 camshaft in 3 different 426 Hemi cars. That old cam flat out worked. It woke those engine up. Strong all the way through the rpm band.....

Hey OP - thanks for asking the question. This is a great conversation....

I agree. Trying to eek out every last ounce of power/torque that might be in an engine means that there are trade offs. Tire height, rear gears, vehicle weight, cubic inches, camshaft, compression ratio, intended use of the car, etc..... You have to look at the entire picture to make decisions...

The longer stroke and added cubes will take care of the bottom end power..... 0.02...

These cross rams are a whole nother animal......

You might be right. I have always heard that because of the unequal plenum sizes and runner lengths, it was difficult to get flow velocity and A/F ratios close from cylinder to cylinder.

I have also heard that the dual planes are very hard to get even A/F ratios from cylinder to cylinder like you can with a single plane.

If it was only the lifter that was damaged, it wouldn't be such a big deal. But when the lifters fail, so mush expensive collateral damage is done. That's what sucks...

My MSD is in the same location, but tucked up higher out of sight. Been in there since 2003 with no issues....

I would think that it would - for as long as the valve is open.

Time for my dumb question. I have been following along in this thread and I have a question for you cam guys. Assuming and engine is 340 CI and is running "Cam-X" and it works great. Now let's make that same engine 400 CI. IF we got to the new CI by a longer stroke, wouldn't you need a longer...

I do that very thing in my 572 - 11.5-1 Hemi Cuda. Around here, the only ethanol free gas is 90 octane. The pump gas 93 octane gas has minimum 10% ethanol. I think the OP's combo would be iffy at best on 90 octane gas. Same with mine. So, I do the following: I buy a drum of VP - 110 racing fuel...

If nothing has changed and those are the bolts that came out of the head, I would suspect that oil got in the bolt hole and partially filled the hole with oil. Oil is not compressible, thus the bolt goes partially into the hole and stops. You can check it with a Q-Tip. Stick a Q-Tip into the...

Check your battery/alternator voltage. Low voltage to the ignition under load will cause that issue. Also make sure that all electrical connections and grounds are tight.

Rtv.....