Quote: The old cam was your stocker 318 2bbl cam, and there were some bent pushrods. Some of the rods measured .020-.040 shorter with the bend calculated
Consider the specs with a 1.6 ratio and I have alot more lift. More of a torque cam than a street terror powerhouse. I chose this route for the road-tripping torque rather than racing.
eightlitermopar
you should feel things much stronger above 3500-4k....
my old '86 M body's 318 was all done by 4000 RPM stock. it's advertised torque peak was 2000 RPM....granted I never had headers and a 4bbl on that engine in that config....
that same short block with the magnum heads and my reground roller cam (used Bullet Cam's HR259/316 lobe) felt as strong as the 360 with an XE262 in it that I had in the car before I put the roller 'teen in.
the 259/316's specs are 259adv, 208@.050, 127@.200, .316 lobe lift (.506" with 1.6's)
your XE250's specs are 250 adv, 206@.050, 117@.200, .280LL (.461" with 1.6's)
with 10 degrees less duration at .2" lobe lift, and .045" less gross lift, I would expect your engine not to be as strong as mine was, but I would think it would feel much stronger above where the original cam/heads would nose over, which if the older 318 was anything like my '86, would've been about 3500 RPM...
how much ignition advance are you running? on my mag headed 318, it felt like it made the best power on the butt dyno with about 30 degrees total advance, and felt like it slowed down if you gave it older LA advance levels (36-40)....
1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!*** 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
