its not that hard from what i read.
this guide is for a dp holley but you should be able to make it work for your carb.
http://www.hangar18fabrication.com/blowthru.html
the rb intake kit for a stock port 12a uses a 465 cfm carb. i dont know a whole lot about carbs, but do you think i could use that guide to mod the rb intake kit.
i havea garrett to4b sitting next to my pc i want to use real bad. needs a rebuild, but cant complain about it,got it for 100$ plus shipping.