does anybody know much about these. i know our stock ones are 78 mm. but if i threw a 90/90 on a almost stock engine would it mess **** up? an when my build is done an i have around 600 hp (hopefullly) willl the 90/90 work good with it? guy wants 625 shipped. think its worth it? i already have an ls6 intake. but does it make that much of a difference?

 

It shows the best gains with all bolton H/C car. It prolly won't show much over the LS6 on a stock motor.

That is a good deal. You can sell your LS6 for $300-$325 and only have $300 in it....

 

i like fast but just a stock car id go with ls6 and use the xtra money for a cam or something