Erson cam

I have the Sig Erson TQ50 in my 340...part # E420223

specs are .472 lift on both
228/235 duration @ .050
110 lobe center
installed at 105-1/2

rest of motor is .040 over
10 to 1 compression
j heads 2.02 valves
2400 stall
3.55 gears

so with your more cubes, better gear ratio, and higher stall it will be even better

here is video of it idling with flowmaster mufflers

[ame="http://i2.photobucket.com/albums/y36/bbrroowwnn/1929%20dodge%20coupe%20video/00031_zps23c60d78.mp4"][/ame]



Here is it idling without mufflers

[ame=http://i2.photobucket.com/albums/y36/bbrroowwnn/1929%20dodge%20coupe%20video/000021.mp4][/ame]