A408 thanks for the info
All stock 340 cams are the same except for the rare 68 stick and power is way up in the rpm band in a 273 or 318 and lower down low especially in a low compression
do you know what your cr was or cranking compression?
A motor like late low compression 340-360 and 2bbl 273 with rebuilder pistons of undetermined compression height- 8.5 advertised
Bottom line
Aj mirrors my thoughts
call Bullet
everything is a compromise but it would be easier to make your combination work with a solid cam as you already have the rockers
273 even a 255 or 256 comp is to big for OP's build without making changes
but if you like 255 use this one or similar Lunati
Howards Cams Hydraulic Flat Tappet Camshaft and Lifter Kits CL711381-10
compare that with your Dodge Downgrade - unfortunatly comp makes nothing shorter than a 274 for MOPAR
