I have no idea why that outdated pos B cam is still popular.
It may have been the first performance roller cam offered for the 302,but that doesn't make it good.
I suppose I should actually answer the OP's question about opinions of the Bcam.
Because it has been sold since the invention of dirt does not mean that it is a pos.
I can understand why some have had issue with this cam. For starters the cam should be run with 1.7's. The lobes are, well, lazy is a kind way to put it. The lift value with 1.6's ( .480) is far shallow of what most modern aftermarket cams have to offer. In fact, it is the lowest lift value of any of the letter cam offerings. When paired with 1.7's the cam lift changes to a more logical and proper .510 and along with the higher lift gains a much needed ramp profile at the valves. Secondly, the cam should be installed 2* advanced to place the max intake event at 105*....Wait, let me stop right there.
Cam designs and profiles can and have been beaten to death forever. Facts is, there are plenty of guys who have run in the 11's with the B 303 naturally aspirated. I myself have run countless traction limited 12.40's with the combination in my signature. It's all about the combination.
Because of the lazy lobe profile (to a lesser extent with the 1.7's) This cam is kind to valve train components. My combination is coming up on TWELVE years old and has countless miles of Solo 1 and Solo 2 track time as well as, at last count, over 500 passes down the 1/4 mile. I'm not sure how many guys can brag on that level of durability of their combination... which bring me to my main point.
The B 303 is a fantastic HOBBY GRADE cam, which is what this is at the end of the day. Whether the car runs 13's or 10's it's still a pass time. ( I have seen Bcam combinations cover this spread) At the end of the day it is a very fun cam to own with the right combination. It sounds nice and it works very nicely with the stock electronics.
But I have to ask a question: If this cam is so terrible, why in the world am I still showing my tail lights to guys with (insert cam of choice here) combinations? I am laying down over 300rwhp, it passes a California sniffer, it is a riot to drive...
Would a custom cam give me better results??
How about another ots cam, could I get profoundly better results?
I doubt it. At least not enough to justify the switch.
It's got a Ford part number.....
Praise be to Lord Bcam.