So i just got a 78 620 kingcab. Got lots of plans for it in the works, but i want to get a little more power out of it. I know there is a lot of aftermarket support for 510's and was wondering how much is similar engine wise. i really want a set of headers and to keep simple i know the 510's came with SU carbs. I love the SU carbs and got really good at tuning and rebuilding them on my 240z but dont want to invest in a set unless i know they will fit on my l20b. Also wondering what cam options there are availability. Any input or advice would be appreciated.

Here is a link to my friends 510 L20B with Dual SU's.

http://desertdatsuns.freeforum....html