I used 93 gas but I'm sure if u have to...depends on your set up what are you planning on running?and as for pics I will get them later for you I'm at work texting this off my cell phone
It won't lower compression it will bring it up and it brought my compression to 175 in each cyclinder and I will have to get back to you on the shipping
I have a set of E7 heads ported and milled 0.030 they have crane dual valve springs and they have 750 miles on them, all work down by a machine shop in middletown ny, comes with painted valve covers
call if interested or pm
1914-447-0016
225