E.I. 225 Slant 6

I bought the Pertronix 1361a from Amazon. I searched all over and couldn't find a definitive answer on which one it was and am hoping that is it, because there was also a 1461a. Not sure on the difference except for the price. The 1461 was $10 more. Also, if I replace the coil, I noticed there were several options from them on resistance, I.E. - 3ohm, 1.5 ohm etc...

I don't really like choices, so someone just tell me which one I need. lol. Otherwise I'm just going to stick with stock coil. I know this question has probably been answered somewhere, but my search through the forums yeilded nothing on the subject. MAybe it's just too simple... but looking for answers, then lock the thread, kill it, throw it away, whatever.:glasses7:

Edit: I should clarify, I am just verifying the 1361a is indeed correct, it seems like a lot of info found in search here yields that result and lots of links to it on summit racing. I got it for $67.00 off Amazon with free two day shipping... so had to jump at that. I just had to many options on numbers for Pertronix. And Really am just trying to figure out what coil I need, - or what resistance.