I'm sure this has been asked on here so sorry! But I was thinking of getting a Thumpr cam for my 74 Nova w/ Sbc 350. For right now I kinda wanna keep it as stock as I can except for what's needed to install a cam. I've heard Thumpr cams are more sound then performance but I kinda figured they have to have more performance then a stock 350 cam. If anyone who has had one could let me know there opinion I would be thankful. And if anyone can tell me a overall good cam that would be great.