Basically I was wondering if I could swap out my head with a z6 head and what exactly the compression ratio would be? Im already planning on using the z6 I/M and E/M on my poor VX to bump up a couple HP. The I/M wont even support a stock SI airbox because the T/B is soooo small. Has anyone ever used the z6 head on this block? LMK what you think....

 

anyone? I just was looking at the vaccum lines on the TB and its seems there are some extras floating....any help?

 

do a search for the compression calculator. i have the link on my other comp but it is by knology or something lke that