318 cam

toolmanmike said
THat would be good until someone posts a Summit cam and someone else will down talk it and say how junk it is. Same with Comp except about the quality. (or lack of) (or not). THere is no win. I would just use baselines. No duration @.050 any larger than 225° It's interesting how the old grinds are heavy on the duration side and have a @.050 around 210° but have 280° advertised. One thing good about those types of cams is the max lift is relatively low and can use stock type springs (like Comp 901's) THey still make power at lower rpm. Take this one for example. and they have a couple that are steps up. This one would work fine with stock exhaust and converter. A 4 barrel would be a plus.
204°/214° 278°/288° .421/.444 112° 12-5000 rpm
DODGE Summit Racing SUM-6900 Summit Racing™ Classic Camshafts | Summit Racing.

This may not help the OP, but the SUM-6900 cam and lifters is what I ended up using in my 74 318. Bone-stock low-compression bottom end with the cam, duals, and an 1406 Edelbrock on a Performer intake. I currently still have 2.76 gears and a stock convertor. I noticed no loss of low-end and the mid-range is much-improved. It still pulls 19" vacuum and sounds almost stock to me. I know there are better cam choices but, for the money, I am very happy. Crossing my fingers, it hasn't went flat yet after about 5000 miles. I think it will really run well when I get around to installing the 3.55-geared rearend.