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I agree w/ 273 that $2000 is a big adder to your $200 engine to control it. 273 or I are classic CMB's and would try to be resourceful if in your shoes. A Holley Commander 950 would be able to control fuel injectors. I got an ECU for $120 off ebay. However, spark control might be tricky...

Tripped me up, and I was just modernizing my 273's wiring. I ASSumed that IGN1 got +12 V all the time, and IGN2 gave +12V only during crank (to bypass ballast). Turns out that during cranking, IGN2 is the only one energized. I should have tested ign switch with a multimeter. Finally figured...

I didn't know rod bolts need to be replaced. I reused everything the ~3 times I re-ringed an engine (383, 2.4L), with no problems. For the 2.4L, Chrysler says to get new head bolts since a "torque to yield" design. I re-used them and figure maybe I yielded them just a little more. No head...

Don't use an "under-drive" pulley without first reading horror stories on Mopar truck sites. Some people have had their toner ring shatter, which is integral to the crankshaft, and they blame that on having installed an under-drive pulley which caused harmonic vibrations.

Fuel quick connects come in 2 sizes that I have seen - 5/16" and 3/8". I re-used steel braided flex lines from the junkyard from Magnum engines (a truck and Cherokee, had both sizes). I had to cut one end and attach hose to the smooth tubing. You can get male and female sections in both sizes...

I don't think the Hemi matters, other than where the fuel connection are. I have a post on my setup with photos. I used a Walbro external pump, $20 Corvette filter/reg, with new 3/8" steel supply tubing and existing 5/16" tubing for return. I put in a new $45 off ebay sender w/ 3/8" outlet...

Can you post photos of the engine mounts and K-frame? They look to be from the same manufacturer, unless you custom painted them. What is the loop on the front of the K-member for?

Map63Vette, Thanks for explaining the MSD MAP sensor function. I doubt spark advance has anything to do with it stumbling or dying on acceleration since "vacuum advance" is usually pretty small and many racers don't even use it. I have a Holley 2D Projection on my Newport 383, plus a...

I don't have that part, but my day job deals with aerospace instrumentation. What does ".x" mean? Does one sensor read 12.9 psia and the other 13.1 psia? If so, that sounds comparable. Since you haven't changed the wiring, that variability is probably inherent in the sensors. To determine...