What is everyone's oppinion on the comp cam thumper series? I am going to run a stock crate 350 with edelbrock rpm performer intake, edelbrock carb #1405 cant remember the size. With a 4 speed. I dont want to race but I really love the loppy sound.
Overall I did a bunch of research, made sure my cam choice matched the other parts on my motor and went with the most mild Thumpr they had for a BBC.
The sound is nice and the performance should be pretty good. The increased exhaust duration and lobe separation should help with exhaust breath-ability that the BBC typically has problems with.
But you are probably going to get a lot of people putting down the Thumpr line for being marketed as having a nice sound. That isn't my first choice in cam selection (I think there are other strong reasons to pick this cam line). But do whatever makes you happy, just keep in mind matching all the parts in your motor will result in producing the maximum horsepower from that combination of parts.
Don't listen to doubters. The August 2008 issue of Hot Rod magazine did a comparison on the 5 most popular cams and the Thumpr 283THR-107 scored the highest in every category excpet for Peak Power Output. They can, believe it or not, build some nice power. This cam being a roller your engine will need some modifications, but it's for the better anyway. Maybe some of the guys who actually installed the Thumpr will chime in and tell you just how much they like it. Now, some guys may say they lost power, but if they were running a cam with an RPM range of say 2500-6500, then they may very well have felt a loss in TORQUE. The Thumpr is a 1900-5600 cam so it's more toward low grunt and middle torque than it is for upper power. I think you will like it, especially if all you are want is sound. Plus, you will get some fun along with the sound. This is just my opinion of course.
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