Searching for a factory 340 1970 camshaft!!!

krazykuda said

Here's the Mopar Performance version:

Mopar Perf. ''Purple Shaft'' Hydraulic Camshaft Kit

Click to expand...

"idle to 5800 rpm"....i don't think that cam will perform very well under 2500 rpm.
For strictly street use the common 204 / 214, 429 / 444 will start pulling hard at 1000 rpm right through to 5000 rpm.