so ive done an f** ton of searching on here and google only thing ive really found is tests for the bc IV vs pro1 and pro2
the intake on the bc5 and pro2 are similar well besides duration and the pro2 exhaust is higher profile but still less duration..
my setup is 12.3:1 cr. profab header, 3" exhaust pnp head 85mm bore 89mm stroke 440cc injector bla bla bla
i basically just want to know what cam will be better for my setup, pro2 or bc5
car will be mostly drag use, im pretty sure the bc5 makes more power up top but ya. input welcomed

 

pro2.

 

Big engine, and mostly dragracing, i'm thinking Pro 3's.

To little CR?

 

i already have the pro2 cams. im just worried im gonna break something haha. so i can either run them or sell them for the bc5

 

if you already have em just run pro2s. then if the itch gets too bad rip em out and try out the BC5s

 

i know how to avoid the v2v issues. im worried about p2v. maybe i just stress to much haha, hell i may as well just install them and go from there

 

ive had the bc5's on this setup before. but then sold them and took .010 off the hg. so im sittin at 12.3:1

 

Clay your motor man!

 

Really? A year later?

 

Funny thing it was on the top of the All motor section.

 

i have pro3's on my b20v, love them. i cant remember where i seen it at, but the bc5 made about 3-5 more hp on top end than the pro3's but the pro3's killed it every where else in the low to mid range.

 

92typeR tested the the BC 5's against the pro 3's and went with the pro 3's (that was on his B20).

 

just got done doing v2v and p2v on my 85mm b20 with pro 2's last night will be putting the head back on tomorrow night and degreeing the cams in excited to see what they will be like but for sure well worth the time for reassurance measuring