heres what the M/T cross ram looks like. Its a bit taller than the Holley, but I like a lot of the older racing stuff personally.
http://cgi.ebay.com/ebaymotors/M-T-A...spagenameZWD1V
or you can go with an EFI converted mech injection setup like the Kinsler;
or if you want to get real exotic, try an Inglese system
