Sorry for posting in the small block section but I can't find a V6 section... I have a stock 231 V6 with a Rochester 2 barrel in a lil vega wagon. I want to do some basic tuning but don't know anything about buick motors. I need answers to the questions below if anyone can help me out I would really appreciate it...thanks in advance. What should the timing be set to? Plug gap? Car seems to run a little rich, what adjustments do I do to even out the carb mixture? Also I have a oil pressure gauge that I'm looking to install but can't find where in the block to put the fitting for the mechanical gauge. Where would this be located? thanks so much....uzzled:
Since this motor obviously didn't come in your Vega, you can't go by an emissions sticker or tune up specs for the car. What you should do is set the total timing to 32* To do this, you need a dial back timing light or just follow the directions in this thread: http://www.v8buick.com/showthread.php?t=63475 It was written for the 350 and 455, but the balancer on your V6 should be the same, and the same principles apply. Getting the mechanical advance in at 2500 RPM or before will boost performance. Set the total timing, forget the initial timing. You can try leaning out the mixture screws on the carb, and see if it helps The oil pressure fitting is above the oil filter on the front of the block, just behind the parting line of the timing chain cover. Use a tee to operate the gauge and light at the same time.
i believe intial timing with vac hose off is 16 adv but i have ran 18 due to timg chain wear ,if it hasnt been changed replace the chain/gear factory had plastic teeth so you could be loosing power there i think gap is 35 but i have set mine higher with hei
the 231 is based off of the SBB v8 design so you should be able to adapt most of these tips and tricks to your block: http://www.automachperf.com/350
Thanks everyone for all the replies and information. I'm still having a problem finding the oil pressure fitting on the front of the block. Not sure if I need to remove the radiator to have a better view.
